diff --git a/src/modules/cmdpal/Microsoft.CmdPal.Common/Helpers/ExtensionHostInstance.cs b/src/modules/cmdpal/Microsoft.CmdPal.Common/Helpers/ExtensionHostInstance.cs
index 25ff815a69..76de2729d0 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.Common/Helpers/ExtensionHostInstance.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.Common/Helpers/ExtensionHostInstance.cs
@@ -24,7 +24,7 @@ public partial class ExtensionHostInstance
     /// <param name="message">The log message to send</param>
     public void LogMessage(ILogMessage message)
     {
-        if (Host != null)
+        if (Host is not null)
         {
             _ = Task.Run(async () =>
             {
@@ -47,7 +47,7 @@ public partial class ExtensionHostInstance
 
     public void ShowStatus(IStatusMessage message, StatusContext context)
     {
-        if (Host != null)
+        if (Host is not null)
         {
             _ = Task.Run(async () =>
             {
@@ -64,7 +64,7 @@ public partial class ExtensionHostInstance
 
     public void HideStatus(IStatusMessage message)
     {
-        if (Host != null)
+        if (Host is not null)
         {
             _ = Task.Run(async () =>
             {
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/AppExtensionHost.cs b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/AppExtensionHost.cs
index 3a828a3e5d..8a93aee51d 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/AppExtensionHost.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/AppExtensionHost.cs
@@ -36,7 +36,7 @@ public abstract partial class AppExtensionHost : IExtensionHost
 
     public IAsyncAction HideStatus(IStatusMessage? message)
     {
-        if (message == null)
+        if (message is null)
         {
             return Task.CompletedTask.AsAsyncAction();
         }
@@ -55,7 +55,7 @@ public abstract partial class AppExtensionHost : IExtensionHost
 
     public IAsyncAction LogMessage(ILogMessage? message)
     {
-        if (message == null)
+        if (message is null)
         {
             return Task.CompletedTask.AsAsyncAction();
         }
@@ -80,7 +80,7 @@ public abstract partial class AppExtensionHost : IExtensionHost
                 try
                 {
                     var vm = StatusMessages.Where(messageVM => messageVM.Model.Unsafe == message).FirstOrDefault();
-                    if (vm != null)
+                    if (vm is not null)
                     {
                         StatusMessages.Remove(vm);
                     }
@@ -113,7 +113,7 @@ public abstract partial class AppExtensionHost : IExtensionHost
     {
         // If this message is already in the list of messages, just bring it to the top
         var oldVm = StatusMessages.Where(messageVM => messageVM.Model.Unsafe == message).FirstOrDefault();
-        if (oldVm != null)
+        if (oldVm is not null)
         {
             Task.Factory.StartNew(
                 () =>
@@ -142,7 +142,7 @@ public abstract partial class AppExtensionHost : IExtensionHost
 
     public IAsyncAction ShowStatus(IStatusMessage? message, StatusContext context)
     {
-        if (message == null)
+        if (message is null)
         {
             return Task.CompletedTask.AsAsyncAction();
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/CommandBarViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/CommandBarViewModel.cs
index f506c127f2..c01cb13730 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/CommandBarViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/CommandBarViewModel.cs
@@ -2,7 +2,6 @@
 // The Microsoft Corporation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using System.Collections.ObjectModel;
 using CommunityToolkit.Mvvm.ComponentModel;
 using CommunityToolkit.Mvvm.Messaging;
 using Microsoft.CmdPal.Core.ViewModels.Messages;
@@ -35,13 +34,13 @@ public partial class CommandBarViewModel : ObservableObject,
     [NotifyPropertyChangedFor(nameof(HasPrimaryCommand))]
     public partial CommandItemViewModel? PrimaryCommand { get; set; }
 
-    public bool HasPrimaryCommand => PrimaryCommand != null && PrimaryCommand.ShouldBeVisible;
+    public bool HasPrimaryCommand => PrimaryCommand is not null && PrimaryCommand.ShouldBeVisible;
 
     [ObservableProperty]
     [NotifyPropertyChangedFor(nameof(HasSecondaryCommand))]
     public partial CommandItemViewModel? SecondaryCommand { get; set; }
 
-    public bool HasSecondaryCommand => SecondaryCommand != null;
+    public bool HasSecondaryCommand => SecondaryCommand is not null;
 
     [ObservableProperty]
     public partial bool ShouldShowContextMenu { get; set; } = false;
@@ -58,14 +57,14 @@ public partial class CommandBarViewModel : ObservableObject,
 
     private void SetSelectedItem(ICommandBarContext? value)
     {
-        if (value != null)
+        if (value is not null)
         {
             PrimaryCommand = value.PrimaryCommand;
             value.PropertyChanged += SelectedItemPropertyChanged;
         }
         else
         {
-            if (SelectedItem != null)
+            if (SelectedItem is not null)
             {
                 SelectedItem.PropertyChanged -= SelectedItemPropertyChanged;
             }
@@ -88,7 +87,7 @@ public partial class CommandBarViewModel : ObservableObject,
 
     private void UpdateContextItems()
     {
-        if (SelectedItem == null)
+        if (SelectedItem is null)
         {
             SecondaryCommand = null;
             ShouldShowContextMenu = false;
@@ -127,13 +126,13 @@ public partial class CommandBarViewModel : ObservableObject,
     public ContextKeybindingResult CheckKeybinding(bool ctrl, bool alt, bool shift, bool win, VirtualKey key)
     {
         var keybindings = SelectedItem?.Keybindings();
-        if (keybindings != null)
+        if (keybindings is not null)
         {
             // Does the pressed key match any of the keybindings?
             var pressedKeyChord = KeyChordHelpers.FromModifiers(ctrl, alt, shift, win, key, 0);
             if (keybindings.TryGetValue(pressedKeyChord, out var matchedItem))
             {
-                return matchedItem != null ? PerformCommand(matchedItem) : ContextKeybindingResult.Unhandled;
+                return matchedItem is not null ? PerformCommand(matchedItem) : ContextKeybindingResult.Unhandled;
             }
         }
 
@@ -142,7 +141,7 @@ public partial class CommandBarViewModel : ObservableObject,
 
     private ContextKeybindingResult PerformCommand(CommandItemViewModel? command)
     {
-        if (command == null)
+        if (command is null)
         {
             return ContextKeybindingResult.Unhandled;
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/CommandContextItemViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/CommandContextItemViewModel.cs
index f2060efe88..4b25f68e0a 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/CommandContextItemViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/CommandContextItemViewModel.cs
@@ -20,7 +20,7 @@ public partial class CommandContextItemViewModel(ICommandContextItem contextItem
 
     public KeyChord? RequestedShortcut { get; private set; }
 
-    public bool HasRequestedShortcut => RequestedShortcut != null && (RequestedShortcut.Value != nullKeyChord);
+    public bool HasRequestedShortcut => RequestedShortcut is not null && (RequestedShortcut.Value != nullKeyChord);
 
     public override void InitializeProperties()
     {
@@ -32,7 +32,7 @@ public partial class CommandContextItemViewModel(ICommandContextItem contextItem
         base.InitializeProperties();
 
         var contextItem = Model.Unsafe;
-        if (contextItem == null)
+        if (contextItem is null)
         {
             return; // throw?
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/CommandItemViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/CommandItemViewModel.cs
index 1b9dcf211a..4f589a4e2f 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/CommandItemViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/CommandItemViewModel.cs
@@ -68,7 +68,7 @@ public partial class CommandItemViewModel : ExtensionObjectViewModel, ICommandBa
     {
         get
         {
-            List<IContextItemViewModel> l = _defaultCommandContextItem == null ?
+            List<IContextItemViewModel> l = _defaultCommandContextItem is null ?
                 new() :
                 [_defaultCommandContextItem];
 
@@ -100,7 +100,7 @@ public partial class CommandItemViewModel : ExtensionObjectViewModel, ICommandBa
         }
 
         var model = _commandItemModel.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return;
         }
@@ -128,7 +128,7 @@ public partial class CommandItemViewModel : ExtensionObjectViewModel, ICommandBa
         }
 
         var model = _commandItemModel.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return;
         }
@@ -136,7 +136,7 @@ public partial class CommandItemViewModel : ExtensionObjectViewModel, ICommandBa
         Command.InitializeProperties();
 
         var listIcon = model.Icon;
-        if (listIcon != null)
+        if (listIcon is not null)
         {
             _listItemIcon = new(listIcon);
             _listItemIcon.InitializeProperties();
@@ -172,13 +172,13 @@ public partial class CommandItemViewModel : ExtensionObjectViewModel, ICommandBa
         }
 
         var model = _commandItemModel.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return;
         }
 
         var more = model.MoreCommands;
-        if (more != null)
+        if (more is not null)
         {
             MoreCommands = more
                 .Select(item =>
@@ -300,7 +300,7 @@ public partial class CommandItemViewModel : ExtensionObjectViewModel, ICommandBa
     protected virtual void FetchProperty(string propertyName)
     {
         var model = this._commandItemModel.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return; // throw?
         }
@@ -308,7 +308,7 @@ public partial class CommandItemViewModel : ExtensionObjectViewModel, ICommandBa
         switch (propertyName)
         {
             case nameof(Command):
-                if (Command != null)
+                if (Command is not null)
                 {
                     Command.PropertyChanged -= Command_PropertyChanged;
                 }
@@ -339,7 +339,7 @@ public partial class CommandItemViewModel : ExtensionObjectViewModel, ICommandBa
 
             case nameof(model.MoreCommands):
                 var more = model.MoreCommands;
-                if (more != null)
+                if (more is not null)
                 {
                     var newContextMenu = more
                         .Select(item =>
@@ -394,7 +394,7 @@ public partial class CommandItemViewModel : ExtensionObjectViewModel, ICommandBa
                 // Extensions based on Command Palette SDK < 0.3 CommandItem class won't notify when Title changes because Command
                 // or Command.Name change. This is a workaround to ensure that the Title is always up-to-date for extensions with old SDK.
                 var model = _commandItemModel.Unsafe;
-                if (model != null)
+                if (model is not null)
                 {
                     _itemTitle = model.Title;
                 }
@@ -430,7 +430,7 @@ public partial class CommandItemViewModel : ExtensionObjectViewModel, ICommandBa
         Command.SafeCleanup();
 
         var model = _commandItemModel.Unsafe;
-        if (model != null)
+        if (model is not null)
         {
             model.PropChanged -= Model_PropChanged;
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/CommandViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/CommandViewModel.cs
index 6e48cef382..30a85045d3 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/CommandViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/CommandViewModel.cs
@@ -44,7 +44,7 @@ public partial class CommandViewModel : ExtensionObjectViewModel
         }
 
         var model = Model.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return;
         }
@@ -67,13 +67,13 @@ public partial class CommandViewModel : ExtensionObjectViewModel
         }
 
         var model = Model.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return;
         }
 
         var ico = model.Icon;
-        if (ico != null)
+        if (ico is not null)
         {
             Icon = new(ico);
             Icon.InitializeProperties();
@@ -98,7 +98,7 @@ public partial class CommandViewModel : ExtensionObjectViewModel
     protected void FetchProperty(string propertyName)
     {
         var model = Model.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return; // throw?
         }
@@ -125,7 +125,7 @@ public partial class CommandViewModel : ExtensionObjectViewModel
         Icon = new(null); // necessary?
 
         var model = Model.Unsafe;
-        if (model != null)
+        if (model is not null)
         {
             model.PropChanged -= Model_PropChanged;
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/ConfirmResultViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/ConfirmResultViewModel.cs
index 45cd18f4dd..c653357ccd 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/ConfirmResultViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/ConfirmResultViewModel.cs
@@ -25,7 +25,7 @@ public partial class ConfirmResultViewModel(IConfirmationArgs _args, WeakReferen
     public override void InitializeProperties()
     {
         var model = Model.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return;
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/ContentPageViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/ContentPageViewModel.cs
index 7787916de5..0c0f7c7c12 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/ContentPageViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/ContentPageViewModel.cs
@@ -28,7 +28,7 @@ public abstract partial class ContentPageViewModel : PageViewModel, ICommandBarC
     public DetailsViewModel? Details { get; private set; }
 
     [MemberNotNullWhen(true, nameof(Details))]
-    public bool HasDetails => Details != null;
+    public bool HasDetails => Details is not null;
 
     /////// ICommandBarContext ///////
     public IEnumerable<IContextItemViewModel> MoreCommands => Commands.Skip(1);
@@ -67,7 +67,7 @@ public abstract partial class ContentPageViewModel : PageViewModel, ICommandBarC
             foreach (var item in newItems)
             {
                 var viewModel = ViewModelFromContent(item, PageContext);
-                if (viewModel != null)
+                if (viewModel is not null)
                 {
                     viewModel.InitializeProperties();
                     newContent.Add(viewModel);
@@ -104,7 +104,7 @@ public abstract partial class ContentPageViewModel : PageViewModel, ICommandBarC
         base.InitializeProperties();
 
         var model = _model.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return; // throw?
         }
@@ -133,7 +133,7 @@ public abstract partial class ContentPageViewModel : PageViewModel, ICommandBarC
             });
 
         var extensionDetails = model.Details;
-        if (extensionDetails != null)
+        if (extensionDetails is not null)
         {
             Details = new(extensionDetails, PageContext);
             Details.InitializeProperties();
@@ -156,7 +156,7 @@ public abstract partial class ContentPageViewModel : PageViewModel, ICommandBarC
         base.FetchProperty(propertyName);
 
         var model = this._model.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return; // throw?
         }
@@ -166,7 +166,7 @@ public abstract partial class ContentPageViewModel : PageViewModel, ICommandBarC
             case nameof(Commands):
 
                 var more = model.Commands;
-                if (more != null)
+                if (more is not null)
                 {
                     var newContextMenu = more
                             .ToList()
@@ -216,7 +216,7 @@ public abstract partial class ContentPageViewModel : PageViewModel, ICommandBarC
                 break;
             case nameof(Details):
                 var extensionDetails = model.Details;
-                Details = extensionDetails != null ? new(extensionDetails, PageContext) : null;
+                Details = extensionDetails is not null ? new(extensionDetails, PageContext) : null;
                 UpdateDetails();
                 break;
         }
@@ -248,7 +248,7 @@ public abstract partial class ContentPageViewModel : PageViewModel, ICommandBarC
     [RelayCommand]
     private void InvokePrimaryCommand(ContentPageViewModel page)
     {
-        if (PrimaryCommand != null)
+        if (PrimaryCommand is not null)
         {
             WeakReferenceMessenger.Default.Send<PerformCommandMessage>(new(PrimaryCommand.Command.Model, PrimaryCommand.Model));
         }
@@ -258,7 +258,7 @@ public abstract partial class ContentPageViewModel : PageViewModel, ICommandBarC
     [RelayCommand]
     private void InvokeSecondaryCommand(ContentPageViewModel page)
     {
-        if (SecondaryCommand != null)
+        if (SecondaryCommand is not null)
         {
             WeakReferenceMessenger.Default.Send<PerformCommandMessage>(new(SecondaryCommand.Command.Model, SecondaryCommand.Model));
         }
@@ -285,7 +285,7 @@ public abstract partial class ContentPageViewModel : PageViewModel, ICommandBarC
         Content.Clear();
 
         var model = _model.Unsafe;
-        if (model != null)
+        if (model is not null)
         {
             model.ItemsChanged -= Model_ItemsChanged;
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/ContextMenuViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/ContextMenuViewModel.cs
index c13d4dbb96..02af0aa67e 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/ContextMenuViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/ContextMenuViewModel.cs
@@ -8,7 +8,6 @@ using CommunityToolkit.Mvvm.Messaging;
 using Microsoft.CmdPal.Core.ViewModels.Messages;
 using Microsoft.CommandPalette.Extensions;
 using Microsoft.CommandPalette.Extensions.Toolkit;
-using Microsoft.Diagnostics.Utilities;
 using Windows.System;
 
 namespace Microsoft.CmdPal.Core.ViewModels;
@@ -51,7 +50,7 @@ public partial class ContextMenuViewModel : ObservableObject,
 
     public void UpdateContextItems()
     {
-        if (SelectedItem != null)
+        if (SelectedItem is not null)
         {
             if (SelectedItem.MoreCommands.Count() > 1)
             {
@@ -68,14 +67,14 @@ public partial class ContextMenuViewModel : ObservableObject,
             return;
         }
 
-        if (SelectedItem == null)
+        if (SelectedItem is null)
         {
             return;
         }
 
         _lastSearchText = searchText;
 
-        if (CurrentContextMenu == null)
+        if (CurrentContextMenu is null)
         {
             ListHelpers.InPlaceUpdateList(FilteredItems, []);
             return;
@@ -124,7 +123,7 @@ public partial class ContextMenuViewModel : ObservableObject,
     /// that have a shortcut key set.</returns>
     public Dictionary<KeyChord, CommandContextItemViewModel> Keybindings()
     {
-        if (CurrentContextMenu == null)
+        if (CurrentContextMenu is null)
         {
             return [];
         }
@@ -140,7 +139,7 @@ public partial class ContextMenuViewModel : ObservableObject,
     public ContextKeybindingResult? CheckKeybinding(bool ctrl, bool alt, bool shift, bool win, VirtualKey key)
     {
         var keybindings = Keybindings();
-        if (keybindings != null)
+        if (keybindings is not null)
         {
             // Does the pressed key match any of the keybindings?
             var pressedKeyChord = KeyChordHelpers.FromModifiers(ctrl, alt, shift, win, key, 0);
@@ -190,7 +189,7 @@ public partial class ContextMenuViewModel : ObservableObject,
         OnPropertyChanging(nameof(CurrentContextMenu));
         OnPropertyChanged(nameof(CurrentContextMenu));
 
-        if (CurrentContextMenu != null)
+        if (CurrentContextMenu is not null)
         {
             ListHelpers.InPlaceUpdateList(FilteredItems, [.. CurrentContextMenu!]);
         }
@@ -198,7 +197,7 @@ public partial class ContextMenuViewModel : ObservableObject,
 
     public ContextKeybindingResult InvokeCommand(CommandItemViewModel? command)
     {
-        if (command == null)
+        if (command is null)
         {
             return ContextKeybindingResult.Unhandled;
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/DetailsCommandsViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/DetailsCommandsViewModel.cs
index b85aeaba81..11a67603e9 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/DetailsCommandsViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/DetailsCommandsViewModel.cs
@@ -22,7 +22,7 @@ public partial class DetailsCommandsViewModel(
     {
         base.InitializeProperties();
         var model = _dataModel.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return;
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/DetailsElementViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/DetailsElementViewModel.cs
index 390459f26c..9739220b65 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/DetailsElementViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/DetailsElementViewModel.cs
@@ -16,7 +16,7 @@ public abstract partial class DetailsElementViewModel(IDetailsElement _detailsEl
     public override void InitializeProperties()
     {
         var model = _model.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return;
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/DetailsLinkViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/DetailsLinkViewModel.cs
index e7aa9b67af..427fcd170e 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/DetailsLinkViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/DetailsLinkViewModel.cs
@@ -18,7 +18,7 @@ public partial class DetailsLinkViewModel(
 
     public Uri? Link { get; private set; }
 
-    public bool IsLink => Link != null;
+    public bool IsLink => Link is not null;
 
     public bool IsText => !IsLink;
 
@@ -26,14 +26,14 @@ public partial class DetailsLinkViewModel(
     {
         base.InitializeProperties();
         var model = _dataModel.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return;
         }
 
         Text = model.Text ?? string.Empty;
         Link = model.Link;
-        if (string.IsNullOrEmpty(Text) && Link != null)
+        if (string.IsNullOrEmpty(Text) && Link is not null)
         {
             Text = Link.ToString();
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/DetailsTagsViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/DetailsTagsViewModel.cs
index 803585c1ce..747a0a74c9 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/DetailsTagsViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/DetailsTagsViewModel.cs
@@ -22,7 +22,7 @@ public partial class DetailsTagsViewModel(
     {
         base.InitializeProperties();
         var model = _dataModel.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return;
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/DetailsViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/DetailsViewModel.cs
index 034e247519..a381cfda6b 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/DetailsViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/DetailsViewModel.cs
@@ -26,7 +26,7 @@ public partial class DetailsViewModel(IDetails _details, WeakReference<IPageCont
     public override void InitializeProperties()
     {
         var model = _detailsModel.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return;
         }
@@ -41,7 +41,7 @@ public partial class DetailsViewModel(IDetails _details, WeakReference<IPageCont
         UpdateProperty(nameof(HeroImage));
 
         var meta = model.Metadata;
-        if (meta != null)
+        if (meta is not null)
         {
             foreach (var element in meta)
             {
@@ -53,7 +53,7 @@ public partial class DetailsViewModel(IDetails _details, WeakReference<IPageCont
                     IDetailsTags => new DetailsTagsViewModel(element, this.PageContext),
                     _ => null,
                 };
-                if (vm != null)
+                if (vm is not null)
                 {
                     vm.InitializeProperties();
                     Metadata.Add(vm);
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/IconDataViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/IconDataViewModel.cs
index 70b143864c..5f4b4436f2 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/IconDataViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/IconDataViewModel.cs
@@ -16,7 +16,7 @@ public partial class IconDataViewModel : ObservableObject, IIconData
     // If the extension previously gave us a Data, then died, the data will
     // throw if we actually try to read it, but the pointer itself won't be
     // null, so this is relatively safe.
-    public bool HasIcon => !string.IsNullOrEmpty(Icon) || Data.Unsafe != null;
+    public bool HasIcon => !string.IsNullOrEmpty(Icon) || Data.Unsafe is not null;
 
     // Locally cached properties from IIconData.
     public string Icon { get; private set; } = string.Empty;
@@ -36,7 +36,7 @@ public partial class IconDataViewModel : ObservableObject, IIconData
     public void InitializeProperties()
     {
         var model = _model.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return;
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/IconInfoViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/IconInfoViewModel.cs
index 21ddbe99d9..aebe9b03aa 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/IconInfoViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/IconInfoViewModel.cs
@@ -26,7 +26,7 @@ public partial class IconInfoViewModel : ObservableObject, IIconInfo
 
     public bool HasIcon(bool light) => IconForTheme(light).HasIcon;
 
-    public bool IsSet => _model.Unsafe != null;
+    public bool IsSet => _model.Unsafe is not null;
 
     IIconData? IIconInfo.Dark => Dark;
 
@@ -43,7 +43,7 @@ public partial class IconInfoViewModel : ObservableObject, IIconInfo
     public void InitializeProperties()
     {
         var model = _model.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return;
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/ListItemViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/ListItemViewModel.cs
index 682bf4daea..ad1aebe2d1 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/ListItemViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/ListItemViewModel.cs
@@ -27,7 +27,7 @@ public partial class ListItemViewModel(IListItem model, WeakReference<IPageConte
     public DetailsViewModel? Details { get; private set; }
 
     [MemberNotNullWhen(true, nameof(Details))]
-    public bool HasDetails => Details != null;
+    public bool HasDetails => Details is not null;
 
     public override void InitializeProperties()
     {
@@ -40,7 +40,7 @@ public partial class ListItemViewModel(IListItem model, WeakReference<IPageConte
         base.InitializeProperties();
 
         var li = Model.Unsafe;
-        if (li == null)
+        if (li is null)
         {
             return; // throw?
         }
@@ -50,7 +50,7 @@ public partial class ListItemViewModel(IListItem model, WeakReference<IPageConte
         TextToSuggest = li.TextToSuggest;
         Section = li.Section ?? string.Empty;
         var extensionDetails = li.Details;
-        if (extensionDetails != null)
+        if (extensionDetails is not null)
         {
             Details = new(extensionDetails, PageContext);
             Details.InitializeProperties();
@@ -67,7 +67,7 @@ public partial class ListItemViewModel(IListItem model, WeakReference<IPageConte
         base.FetchProperty(propertyName);
 
         var model = this.Model.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return; // throw?
         }
@@ -85,7 +85,7 @@ public partial class ListItemViewModel(IListItem model, WeakReference<IPageConte
                 break;
             case nameof(Details):
                 var extensionDetails = model.Details;
-                Details = extensionDetails != null ? new(extensionDetails, PageContext) : null;
+                Details = extensionDetails is not null ? new(extensionDetails, PageContext) : null;
                 Details?.InitializeProperties();
                 UpdateProperty(nameof(Details));
                 UpdateProperty(nameof(HasDetails));
@@ -136,7 +136,7 @@ public partial class ListItemViewModel(IListItem model, WeakReference<IPageConte
         Details?.SafeCleanup();
 
         var model = Model.Unsafe;
-        if (model != null)
+        if (model is not null)
         {
             // We don't need to revoke the PropChanged event handler here,
             // because we are just overriding CommandItem's FetchProperty and
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/ListViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/ListViewModel.cs
index 8d54dd141f..5a5a14fbdd 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/ListViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/ListViewModel.cs
@@ -298,11 +298,11 @@ public partial class ListViewModel : PageViewModel, IDisposable
     [RelayCommand]
     private void InvokeItem(ListItemViewModel? item)
     {
-        if (item != null)
+        if (item is not null)
         {
             WeakReferenceMessenger.Default.Send<PerformCommandMessage>(new(item.Command.Model, item.Model));
         }
-        else if (ShowEmptyContent && EmptyContent.PrimaryCommand?.Model.Unsafe != null)
+        else if (ShowEmptyContent && EmptyContent.PrimaryCommand?.Model.Unsafe is not null)
         {
             WeakReferenceMessenger.Default.Send<PerformCommandMessage>(new(
                 EmptyContent.PrimaryCommand.Command.Model,
@@ -314,14 +314,14 @@ public partial class ListViewModel : PageViewModel, IDisposable
     [RelayCommand]
     private void InvokeSecondaryCommand(ListItemViewModel? item)
     {
-        if (item != null)
+        if (item is not null)
         {
-            if (item.SecondaryCommand != null)
+            if (item.SecondaryCommand is not null)
             {
                 WeakReferenceMessenger.Default.Send<PerformCommandMessage>(new(item.SecondaryCommand.Command.Model, item.Model));
             }
         }
-        else if (ShowEmptyContent && EmptyContent.SecondaryCommand?.Model.Unsafe != null)
+        else if (ShowEmptyContent && EmptyContent.SecondaryCommand?.Model.Unsafe is not null)
         {
             WeakReferenceMessenger.Default.Send<PerformCommandMessage>(new(
                 EmptyContent.SecondaryCommand.Command.Model,
@@ -332,12 +332,12 @@ public partial class ListViewModel : PageViewModel, IDisposable
     [RelayCommand]
     private void UpdateSelectedItem(ListItemViewModel? item)
     {
-        if (_lastSelectedItem != null)
+        if (_lastSelectedItem is not null)
         {
             _lastSelectedItem.PropertyChanged -= SelectedItemPropertyChanged;
         }
 
-        if (item != null)
+        if (item is not null)
         {
             SetSelectedItem(item);
         }
@@ -383,7 +383,7 @@ public partial class ListViewModel : PageViewModel, IDisposable
     private void SelectedItemPropertyChanged(object? sender, System.ComponentModel.PropertyChangedEventArgs e)
     {
         var item = _lastSelectedItem;
-        if (item == null)
+        if (item is null)
         {
             return;
         }
@@ -438,7 +438,7 @@ public partial class ListViewModel : PageViewModel, IDisposable
         base.InitializeProperties();
 
         var model = _model.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return; // throw?
         }
@@ -465,7 +465,7 @@ public partial class ListViewModel : PageViewModel, IDisposable
     public void LoadMoreIfNeeded()
     {
         var model = this._model.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return;
         }
@@ -509,7 +509,7 @@ public partial class ListViewModel : PageViewModel, IDisposable
         base.FetchProperty(propertyName);
 
         var model = this._model.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return; // throw?
         }
@@ -540,7 +540,7 @@ public partial class ListViewModel : PageViewModel, IDisposable
     private void UpdateEmptyContent()
     {
         UpdateProperty(nameof(ShowEmptyContent));
-        if (!ShowEmptyContent || EmptyContent.Model.Unsafe == null)
+        if (!ShowEmptyContent || EmptyContent.Model.Unsafe is null)
         {
             return;
         }
@@ -588,7 +588,7 @@ public partial class ListViewModel : PageViewModel, IDisposable
         }
 
         var model = _model.Unsafe;
-        if (model != null)
+        if (model is not null)
         {
             model.ItemsChanged -= Model_ItemsChanged;
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/LogMessageViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/LogMessageViewModel.cs
index 9ebff20304..969bf60aea 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/LogMessageViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/LogMessageViewModel.cs
@@ -22,7 +22,7 @@ public partial class LogMessageViewModel : ExtensionObjectViewModel
     public override void InitializeProperties()
     {
         var model = _model.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return; // throw?
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/PageViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/PageViewModel.cs
index 552971b96c..7a301c89b0 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/PageViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/PageViewModel.cs
@@ -45,7 +45,7 @@ public partial class PageViewModel : ExtensionObjectViewModel, IPageContext
     [ObservableProperty]
     public partial AppExtensionHost ExtensionHost { get; private set; }
 
-    public bool HasStatusMessage => MostRecentStatusMessage != null;
+    public bool HasStatusMessage => MostRecentStatusMessage is not null;
 
     [ObservableProperty]
     [NotifyPropertyChangedFor(nameof(HasStatusMessage))]
@@ -132,7 +132,7 @@ public partial class PageViewModel : ExtensionObjectViewModel, IPageContext
     public override void InitializeProperties()
     {
         var page = _pageModel.Unsafe;
-        if (page == null)
+        if (page is null)
         {
             return; // throw?
         }
@@ -177,7 +177,7 @@ public partial class PageViewModel : ExtensionObjectViewModel, IPageContext
     protected virtual void FetchProperty(string propertyName)
     {
         var model = this._pageModel.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return; // throw?
         }
@@ -240,7 +240,7 @@ public partial class PageViewModel : ExtensionObjectViewModel, IPageContext
         ExtensionHost.StatusMessages.CollectionChanged -= StatusMessages_CollectionChanged;
 
         var model = _pageModel.Unsafe;
-        if (model != null)
+        if (model is not null)
         {
             model.PropChanged -= Model_PropChanged;
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/ProgressViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/ProgressViewModel.cs
index 40ea290dd4..4ddcfb22e7 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/ProgressViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/ProgressViewModel.cs
@@ -24,7 +24,7 @@ public partial class ProgressViewModel : ExtensionObjectViewModel
     public override void InitializeProperties()
     {
         var model = Model.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return; // throw?
         }
@@ -50,7 +50,7 @@ public partial class ProgressViewModel : ExtensionObjectViewModel
     protected virtual void FetchProperty(string propertyName)
     {
         var model = this.Model.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return; // throw?
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/ShellViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/ShellViewModel.cs
index 3663190f11..6c660d52f2 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/ShellViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/ShellViewModel.cs
@@ -120,7 +120,7 @@ public partial class ShellViewModel : ObservableObject,
 
         ////LoadedState = ViewModelLoadedState.Loading;
         if (!viewModel.IsInitialized
-            && viewModel.InitializeCommand != null)
+            && viewModel.InitializeCommand is not null)
         {
             _ = Task.Run(async () =>
             {
@@ -185,7 +185,7 @@ public partial class ShellViewModel : ObservableObject,
     private void PerformCommand(PerformCommandMessage message)
     {
         var command = message.Command.Unsafe;
-        if (command == null)
+        if (command is null)
         {
             return;
         }
@@ -205,7 +205,7 @@ public partial class ShellViewModel : ObservableObject,
 
                 // Construct our ViewModel of the appropriate type and pass it the UI Thread context.
                 var pageViewModel = _pageViewModelFactory.TryCreatePageViewModel(page, _isNested, host);
-                if (pageViewModel == null)
+                if (pageViewModel is null)
                 {
                     Logger.LogError($"Failed to create ViewModel for page {page.GetType().Name}");
                     throw new NotSupportedException();
@@ -240,7 +240,7 @@ public partial class ShellViewModel : ObservableObject,
         // TODO GH #525 This needs more better locking.
         lock (_invokeLock)
         {
-            if (_handleInvokeTask != null)
+            if (_handleInvokeTask is not null)
             {
                 // do nothing - a command is already doing a thing
             }
@@ -280,7 +280,7 @@ public partial class ShellViewModel : ObservableObject,
 
     private void UnsafeHandleCommandResult(ICommandResult? result)
     {
-        if (result == null)
+        if (result is null)
         {
             // No result, nothing to do.
             return;
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/StatusMessageViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/StatusMessageViewModel.cs
index fb8b333637..2c78ff407e 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/StatusMessageViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/StatusMessageViewModel.cs
@@ -17,7 +17,7 @@ public partial class StatusMessageViewModel : ExtensionObjectViewModel
 
     public ProgressViewModel? Progress { get; private set; }
 
-    public bool HasProgress => Progress != null;
+    public bool HasProgress => Progress is not null;
 
     public StatusMessageViewModel(IStatusMessage message, WeakReference<IPageContext> context)
         : base(context)
@@ -28,7 +28,7 @@ public partial class StatusMessageViewModel : ExtensionObjectViewModel
     public override void InitializeProperties()
     {
         var model = Model.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return; // throw?
         }
@@ -36,7 +36,7 @@ public partial class StatusMessageViewModel : ExtensionObjectViewModel
         Message = model.Message;
         State = model.State;
         var modelProgress = model.Progress;
-        if (modelProgress != null)
+        if (modelProgress is not null)
         {
             Progress = new(modelProgress, this.PageContext);
             Progress.InitializeProperties();
@@ -61,7 +61,7 @@ public partial class StatusMessageViewModel : ExtensionObjectViewModel
     protected virtual void FetchProperty(string propertyName)
     {
         var model = this.Model.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return; // throw?
         }
@@ -76,7 +76,7 @@ public partial class StatusMessageViewModel : ExtensionObjectViewModel
                 break;
             case nameof(Progress):
                 var modelProgress = model.Progress;
-                if (modelProgress != null)
+                if (modelProgress is not null)
                 {
                     Progress = new(modelProgress, this.PageContext);
                     Progress.InitializeProperties();
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/TagViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/TagViewModel.cs
index 98ea66f4e8..5287cf441c 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/TagViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.Core.ViewModels/TagViewModel.cs
@@ -28,7 +28,7 @@ public partial class TagViewModel(ITag _tag, WeakReference<IPageContext> context
     public override void InitializeProperties()
     {
         var model = _tagModel.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return;
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/AliasManager.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/AliasManager.cs
index 131d633940..642e5ad4a9 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/AliasManager.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/AliasManager.cs
@@ -35,7 +35,7 @@ public partial class AliasManager : ObservableObject
             try
             {
                 var topLevelCommand = _topLevelCommandManager.LookupCommand(alias.CommandId);
-                if (topLevelCommand != null)
+                if (topLevelCommand is not null)
                 {
                     WeakReferenceMessenger.Default.Send<ClearSearchMessage>();
 
@@ -88,7 +88,7 @@ public partial class AliasManager : ObservableObject
         }
 
         // If we already have _this exact alias_, do nothing
-        if (newAlias != null &&
+        if (newAlias is not null &&
             _aliases.TryGetValue(newAlias.SearchPrefix, out var existingAlias))
         {
             if (existingAlias.CommandId == commandId)
@@ -113,7 +113,7 @@ public partial class AliasManager : ObservableObject
             _aliases.Remove(alias.SearchPrefix);
         }
 
-        if (newAlias != null)
+        if (newAlias is not null)
         {
             AddAlias(newAlias);
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/AppStateModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/AppStateModel.cs
index dd0cfa817d..3a11c50a59 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/AppStateModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/AppStateModel.cs
@@ -55,7 +55,7 @@ public partial class AppStateModel : ObservableObject
 
             var loaded = JsonSerializer.Deserialize<AppStateModel>(jsonContent, JsonSerializationContext.Default.AppStateModel);
 
-            Debug.WriteLine(loaded != null ? "Loaded settings file" : "Failed to parse");
+            Debug.WriteLine(loaded is not null ? "Loaded settings file" : "Failed to parse");
 
             return loaded ?? new();
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/CommandProviderWrapper.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/CommandProviderWrapper.cs
index 852babe4b7..59903d7ed8 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/CommandProviderWrapper.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/CommandProviderWrapper.cs
@@ -15,7 +15,7 @@ namespace Microsoft.CmdPal.UI.ViewModels;
 
 public sealed class CommandProviderWrapper
 {
-    public bool IsExtension => Extension != null;
+    public bool IsExtension => Extension is not null;
 
     private readonly bool isValid;
 
@@ -188,14 +188,14 @@ public sealed class CommandProviderWrapper
 
             return topLevelViewModel;
         };
-        if (commands != null)
+        if (commands is not null)
         {
             TopLevelItems = commands
                 .Select(c => makeAndAdd(c, false))
                 .ToArray();
         }
 
-        if (fallbacks != null)
+        if (fallbacks is not null)
         {
             FallbackItems = fallbacks
                 .Select(c => makeAndAdd(c, true))
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/CommandSettingsViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/CommandSettingsViewModel.cs
index 5709a643cb..2c2eafc44c 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/CommandSettingsViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/CommandSettingsViewModel.cs
@@ -18,18 +18,18 @@ public partial class CommandSettingsViewModel(ICommandSettings? _unsafeSettings,
     public bool Initialized { get; private set; }
 
     public bool HasSettings =>
-        _model.Unsafe != null && // We have a settings model AND
-        (!Initialized || SettingsPage != null); // we weren't initialized, OR we were, and we do have a settings page
+        _model.Unsafe is not null && // We have a settings model AND
+        (!Initialized || SettingsPage is not null); // we weren't initialized, OR we were, and we do have a settings page
 
     private void UnsafeInitializeProperties()
     {
         var model = _model.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return;
         }
 
-        if (model.SettingsPage != null)
+        if (model.SettingsPage is not null)
         {
             SettingsPage = new CommandPaletteContentPageViewModel(model.SettingsPage, mainThread, provider.ExtensionHost);
             SettingsPage.InitializeProperties();
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Commands/CreatedExtensionForm.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Commands/CreatedExtensionForm.cs
index 44bcb49cb3..4ab993d84a 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Commands/CreatedExtensionForm.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Commands/CreatedExtensionForm.cs
@@ -30,7 +30,7 @@ internal sealed partial class CreatedExtensionForm : NewExtensionFormBase
     public override ICommandResult SubmitForm(string inputs, string data)
     {
         var dataInput = JsonNode.Parse(data)?.AsObject();
-        if (dataInput == null)
+        if (dataInput is null)
         {
             return CommandResult.KeepOpen();
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Commands/LogMessagesPage.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Commands/LogMessagesPage.cs
index acb04889fb..90dea58e5c 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Commands/LogMessagesPage.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Commands/LogMessagesPage.cs
@@ -23,7 +23,7 @@ public partial class LogMessagesPage : ListPage
 
     private void LogMessages_CollectionChanged(object? sender, NotifyCollectionChangedEventArgs e)
     {
-        if (e.Action == NotifyCollectionChangedAction.Add && e.NewItems != null)
+        if (e.Action == NotifyCollectionChangedAction.Add && e.NewItems is not null)
         {
             foreach (var item in e.NewItems)
             {
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Commands/MainListPage.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Commands/MainListPage.cs
index 9c4750b0e9..781371a866 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Commands/MainListPage.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Commands/MainListPage.cs
@@ -203,7 +203,7 @@ public partial class MainListPage : DynamicListPage,
 
             // If we don't have any previous filter results to work with, start
             // with a list of all our commands & apps.
-            if (_filteredItems == null)
+            if (_filteredItems is null)
             {
                 _filteredItems = commands;
                 _filteredItemsIncludesApps = _includeApps;
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Commands/NewExtensionForm.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Commands/NewExtensionForm.cs
index c1f3f64612..62301714e9 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Commands/NewExtensionForm.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Commands/NewExtensionForm.cs
@@ -98,7 +98,7 @@ internal sealed partial class NewExtensionForm : NewExtensionFormBase
     public override CommandResult SubmitForm(string payload)
     {
         var formInput = JsonNode.Parse(payload)?.AsObject();
-        if (formInput == null)
+        if (formInput is null)
         {
             return CommandResult.KeepOpen();
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Commands/NewExtensionPage.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Commands/NewExtensionPage.cs
index 8cfa9658d4..6bdb8a7330 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Commands/NewExtensionPage.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Commands/NewExtensionPage.cs
@@ -14,7 +14,7 @@ public partial class NewExtensionPage : ContentPage
 
     public override IContent[] GetContent()
     {
-        return _resultForm != null ? [_resultForm] : [_inputForm];
+        return _resultForm is not null ? [_resultForm] : [_inputForm];
     }
 
     public NewExtensionPage()
@@ -28,13 +28,13 @@ public partial class NewExtensionPage : ContentPage
 
     private void FormSubmitted(NewExtensionFormBase sender, NewExtensionFormBase? args)
     {
-        if (_resultForm != null)
+        if (_resultForm is not null)
         {
             _resultForm.FormSubmitted -= FormSubmitted;
         }
 
         _resultForm = args;
-        if (_resultForm != null)
+        if (_resultForm is not null)
         {
             _resultForm.FormSubmitted += FormSubmitted;
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/ContentMarkdownViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/ContentMarkdownViewModel.cs
index 8ae0935f12..c747bfc231 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/ContentMarkdownViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/ContentMarkdownViewModel.cs
@@ -20,7 +20,7 @@ public partial class ContentMarkdownViewModel(IMarkdownContent _markdown, WeakRe
     public override void InitializeProperties()
     {
         var model = Model.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return;
         }
@@ -47,7 +47,7 @@ public partial class ContentMarkdownViewModel(IMarkdownContent _markdown, WeakRe
     protected void FetchProperty(string propertyName)
     {
         var model = Model.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return; // throw?
         }
@@ -66,7 +66,7 @@ public partial class ContentMarkdownViewModel(IMarkdownContent _markdown, WeakRe
     {
         base.UnsafeCleanup();
         var model = Model.Unsafe;
-        if (model != null)
+        if (model is not null)
         {
             model.PropChanged -= Model_PropChanged;
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/ContentTreeViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/ContentTreeViewModel.cs
index 6368f86ac6..6b6a579207 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/ContentTreeViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/ContentTreeViewModel.cs
@@ -30,13 +30,13 @@ public partial class ContentTreeViewModel(ITreeContent _tree, WeakReference<IPag
     public override void InitializeProperties()
     {
         var model = Model.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return;
         }
 
         var root = model.RootContent;
-        if (root != null)
+        if (root is not null)
         {
             RootContent = ViewModelFromContent(root, PageContext);
             RootContent?.InitializeProperties();
@@ -82,7 +82,7 @@ public partial class ContentTreeViewModel(ITreeContent _tree, WeakReference<IPag
     protected void FetchProperty(string propertyName)
     {
         var model = Model.Unsafe;
-        if (model == null)
+        if (model is null)
         {
             return; // throw?
         }
@@ -91,7 +91,7 @@ public partial class ContentTreeViewModel(ITreeContent _tree, WeakReference<IPag
         {
             case nameof(RootContent):
                 var root = model.RootContent;
-                if (root != null)
+                if (root is not null)
                 {
                     RootContent = ViewModelFromContent(root, PageContext);
                 }
@@ -119,7 +119,7 @@ public partial class ContentTreeViewModel(ITreeContent _tree, WeakReference<IPag
             foreach (var item in newItems)
             {
                 var viewModel = ViewModelFromContent(item, PageContext);
-                if (viewModel != null)
+                if (viewModel is not null)
                 {
                     viewModel.InitializeProperties();
                     newContent.Add(viewModel);
@@ -153,7 +153,7 @@ public partial class ContentTreeViewModel(ITreeContent _tree, WeakReference<IPag
 
         Children.Clear();
         var model = Model.Unsafe;
-        if (model != null)
+        if (model is not null)
         {
             model.PropChanged -= Model_PropChanged;
             model.ItemsChanged -= Model_ItemsChanged;
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/HotkeyManager.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/HotkeyManager.cs
index 36498cbcaa..7fcd2ec7fd 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/HotkeyManager.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/HotkeyManager.cs
@@ -29,7 +29,7 @@ public partial class HotkeyManager : ObservableObject
             }
         }
 
-        _commandHotkeys.RemoveAll(item => item.Hotkey == null);
+        _commandHotkeys.RemoveAll(item => item.Hotkey is null);
 
         foreach (var item in _commandHotkeys)
         {
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Models/ExtensionService.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Models/ExtensionService.cs
index 364d234f5e..f0a14ab7db 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Models/ExtensionService.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Models/ExtensionService.cs
@@ -90,7 +90,7 @@ public partial class ExtensionService : IExtensionService, IDisposable
         }).Result;
         var isExtension = isCmdPalExtensionResult.IsExtension;
         var extension = isCmdPalExtensionResult.Extension;
-        if (isExtension && extension != null)
+        if (isExtension && extension is not null)
         {
             CommandPaletteHost.Instance.DebugLog($"Installed new extension app {extension.DisplayName}");
 
@@ -152,7 +152,7 @@ public partial class ExtensionService : IExtensionService, IDisposable
             {
                 var (cmdPalProvider, classId) = await GetCmdPalExtensionPropertiesAsync(extension);
 
-                return new(cmdPalProvider != null && classId.Count != 0, extension);
+                return new(cmdPalProvider is not null && classId.Count != 0, extension);
             }
         }
 
@@ -237,7 +237,7 @@ public partial class ExtensionService : IExtensionService, IDisposable
     {
         var (cmdPalProvider, classIds) = await GetCmdPalExtensionPropertiesAsync(extension);
 
-        if (cmdPalProvider == null || classIds.Count == 0)
+        if (cmdPalProvider is null || classIds.Count == 0)
         {
             return [];
         }
@@ -352,12 +352,12 @@ public partial class ExtensionService : IExtensionService, IDisposable
     {
         var propSetList = new List<string>();
         var singlePropertySet = GetSubPropertySet(activationPropSet, CreateInstanceProperty);
-        if (singlePropertySet != null)
+        if (singlePropertySet is not null)
         {
             var classId = GetProperty(singlePropertySet, ClassIdProperty);
 
             // If the instance has a classId as a single string, then it's only supporting a single instance.
-            if (classId != null)
+            if (classId is not null)
             {
                 propSetList.Add(classId);
             }
@@ -365,7 +365,7 @@ public partial class ExtensionService : IExtensionService, IDisposable
         else
         {
             var propertySetArray = GetSubPropertySetArray(activationPropSet, CreateInstanceProperty);
-            if (propertySetArray != null)
+            if (propertySetArray is not null)
             {
                 foreach (var prop in propertySetArray)
                 {
@@ -375,7 +375,7 @@ public partial class ExtensionService : IExtensionService, IDisposable
                     }
 
                     var classId = GetProperty(propertySet, ClassIdProperty);
-                    if (classId != null)
+                    if (classId is not null)
                     {
                         propSetList.Add(classId);
                     }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/ProviderSettings.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/ProviderSettings.cs
index ec33bf4216..1e20040d57 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/ProviderSettings.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/ProviderSettings.cs
@@ -35,7 +35,7 @@ public class ProviderSettings
     public void Connect(CommandProviderWrapper wrapper)
     {
         ProviderId = wrapper.ProviderId;
-        IsBuiltin = wrapper.Extension == null;
+        IsBuiltin = wrapper.Extension is null;
 
         ProviderDisplayName = wrapper.DisplayName;
 
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/ProviderSettingsViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/ProviderSettingsViewModel.cs
index 838e77cb62..714b3ca805 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/ProviderSettingsViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/ProviderSettingsViewModel.cs
@@ -33,7 +33,7 @@ public partial class ProviderSettingsViewModel(
         Resources.builtin_disabled_extension;
 
     [MemberNotNullWhen(true, nameof(Extension))]
-    public bool IsFromExtension => _provider.Extension != null;
+    public bool IsFromExtension => _provider.Extension is not null;
 
     public IExtensionWrapper? Extension => _provider.Extension;
 
@@ -76,7 +76,7 @@ public partial class ProviderSettingsViewModel(
     {
         get
         {
-            if (_provider.Settings == null)
+            if (_provider.Settings is null)
             {
                 return false;
             }
@@ -100,7 +100,7 @@ public partial class ProviderSettingsViewModel(
     {
         get
         {
-            if (_provider.Settings == null)
+            if (_provider.Settings is null)
             {
                 return null;
             }
@@ -126,7 +126,7 @@ public partial class ProviderSettingsViewModel(
     {
         get
         {
-            if (field == null)
+            if (field is null)
             {
                 field = BuildTopLevelViewModels();
             }
@@ -149,7 +149,7 @@ public partial class ProviderSettingsViewModel(
     {
         get
         {
-            if (field == null)
+            if (field is null)
             {
                 field = BuildFallbackViewModels();
             }
@@ -173,7 +173,7 @@ public partial class ProviderSettingsViewModel(
 
     private void InitializeSettingsPage()
     {
-        if (_provider.Settings == null)
+        if (_provider.Settings is null)
         {
             return;
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/RecentCommandsManager.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/RecentCommandsManager.cs
index 8551b5f964..9135c9588a 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/RecentCommandsManager.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/RecentCommandsManager.cs
@@ -30,7 +30,7 @@ public partial class RecentCommandsManager : ObservableObject
             // These numbers are vaguely scaled so that "VS" will make "Visual Studio" the
             // match after one use.
             // Usually it has a weight of 84, compared to 109 for the VS cmd prompt
-            if (entry.Item != null)
+            if (entry.Item is not null)
             {
                 var index = entry.Index;
 
@@ -61,7 +61,7 @@ public partial class RecentCommandsManager : ObservableObject
             var entry = History
             .Where(item => item.CommandId == commandId)
             .FirstOrDefault();
-            if (entry == null)
+            if (entry is null)
             {
                 var newitem = new HistoryItem() { CommandId = commandId, Uses = 1 };
                 History.Insert(0, newitem);
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/SettingsModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/SettingsModel.cs
index 587a8e4f62..b0d10a5285 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/SettingsModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/SettingsModel.cs
@@ -95,7 +95,7 @@ public partial class SettingsModel : ObservableObject
 
             var loaded = JsonSerializer.Deserialize<SettingsModel>(jsonContent, JsonSerializationContext.Default.SettingsModel);
 
-            Debug.WriteLine(loaded != null ? "Loaded settings file" : "Failed to parse");
+            Debug.WriteLine(loaded is not null ? "Loaded settings file" : "Failed to parse");
 
             return loaded ?? new();
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/TopLevelCommandManager.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/TopLevelCommandManager.cs
index 75c327385d..3bd2d8cedf 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/TopLevelCommandManager.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/TopLevelCommandManager.cs
@@ -249,7 +249,7 @@ public partial class TopLevelCommandManager : ObservableObject,
             _extensionCommandProviders.Clear();
         }
 
-        if (extensions != null)
+        if (extensions is not null)
         {
             await StartExtensionsAndGetCommands(extensions);
         }
@@ -283,7 +283,7 @@ public partial class TopLevelCommandManager : ObservableObject,
         var startTasks = extensions.Select(StartExtensionWithTimeoutAsync);
 
         // Wait for all extensions to start
-        var wrappers = (await Task.WhenAll(startTasks)).Where(wrapper => wrapper != null).Select(w => w!).ToList();
+        var wrappers = (await Task.WhenAll(startTasks)).Where(wrapper => wrapper is not null).Select(w => w!).ToList();
 
         lock (_commandProvidersLock)
         {
@@ -293,7 +293,7 @@ public partial class TopLevelCommandManager : ObservableObject,
         // Load the commands from the providers in parallel
         var loadTasks = wrappers.Select(LoadCommandsWithTimeoutAsync);
 
-        var commandSets = (await Task.WhenAll(loadTasks)).Where(results => results != null).Select(r => r!).ToList();
+        var commandSets = (await Task.WhenAll(loadTasks)).Where(results => results is not null).Select(r => r!).ToList();
 
         lock (TopLevelCommands)
         {
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/TopLevelViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/TopLevelViewModel.cs
index 7bdb0ed904..e73f5b09ba 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/TopLevelViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/TopLevelViewModel.cs
@@ -240,7 +240,7 @@ public sealed partial class TopLevelViewModel : ObservableObject, IListItem
     private void FetchAliasFromAliasManager()
     {
         var am = _serviceProvider.GetService<AliasManager>();
-        if (am != null)
+        if (am is not null)
         {
             var commandAlias = am.AliasFromId(Id);
             if (commandAlias is not null)
@@ -254,7 +254,7 @@ public sealed partial class TopLevelViewModel : ObservableObject, IListItem
     private void UpdateHotkey()
     {
         var hotkey = _settings.CommandHotkeys.Where(hk => hk.CommandId == Id).FirstOrDefault();
-        if (hotkey != null)
+        if (hotkey is not null)
         {
             _hotkey = hotkey.Hotkey;
         }
@@ -264,12 +264,12 @@ public sealed partial class TopLevelViewModel : ObservableObject, IListItem
     {
         List<Tag> tags = [];
 
-        if (Hotkey != null)
+        if (Hotkey is not null)
         {
             tags.Add(new Tag() { Text = Hotkey.ToString() });
         }
 
-        if (Alias != null)
+        if (Alias is not null)
         {
             tags.Add(new Tag() { Text = Alias.SearchPrefix });
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/CommandBar.xaml.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/CommandBar.xaml.cs
index 4dec691009..f4a0dc3d43 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/CommandBar.xaml.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/CommandBar.xaml.cs
@@ -10,7 +10,6 @@ using Microsoft.CmdPal.UI.Views;
 using Microsoft.UI.Xaml;
 using Microsoft.UI.Xaml.Controls;
 using Microsoft.UI.Xaml.Controls.Primitives;
-using Microsoft.UI.Xaml.Input;
 using Windows.System;
 
 namespace Microsoft.CmdPal.UI.Controls;
@@ -50,7 +49,7 @@ public sealed partial class CommandBar : UserControl,
             return;
         }
 
-        if (message.Element == null)
+        if (message.Element is null)
         {
             _ = DispatcherQueue.TryEnqueue(
                 () =>
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/ContentFormControl.xaml.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/ContentFormControl.xaml.cs
index 78805f00b2..3301326883 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/ContentFormControl.xaml.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/ContentFormControl.xaml.cs
@@ -44,7 +44,7 @@ public sealed partial class ContentFormControl : UserControl
         // 5% BODGY: if we set this multiple times over the lifetime of the app,
         // then the second call will explode, because "CardOverrideStyles is already the child of another element".
         // SO only set this once.
-        if (_renderer.OverrideStyles == null)
+        if (_renderer.OverrideStyles is null)
         {
             _renderer.OverrideStyles = CardOverrideStyles;
         }
@@ -55,19 +55,19 @@ public sealed partial class ContentFormControl : UserControl
 
     private void AttachViewModel(ContentFormViewModel? vm)
     {
-        if (_viewModel != null)
+        if (_viewModel is not null)
         {
             _viewModel.PropertyChanged -= ViewModel_PropertyChanged;
         }
 
         _viewModel = vm;
 
-        if (_viewModel != null)
+        if (_viewModel is not null)
         {
             _viewModel.PropertyChanged += ViewModel_PropertyChanged;
 
             var c = _viewModel.Card;
-            if (c != null)
+            if (c is not null)
             {
                 DisplayCard(c);
             }
@@ -76,7 +76,7 @@ public sealed partial class ContentFormControl : UserControl
 
     private void ViewModel_PropertyChanged(object? sender, System.ComponentModel.PropertyChangedEventArgs e)
     {
-        if (ViewModel == null)
+        if (ViewModel is null)
         {
             return;
         }
@@ -84,7 +84,7 @@ public sealed partial class ContentFormControl : UserControl
         if (e.PropertyName == nameof(ViewModel.Card))
         {
             var c = ViewModel.Card;
-            if (c != null)
+            if (c is not null)
             {
                 DisplayCard(c);
             }
@@ -95,7 +95,7 @@ public sealed partial class ContentFormControl : UserControl
     {
         _renderedCard = _renderer.RenderAdaptiveCard(result.AdaptiveCard);
         ContentGrid.Children.Clear();
-        if (_renderedCard.FrameworkElement != null)
+        if (_renderedCard.FrameworkElement is not null)
         {
             ContentGrid.Children.Add(_renderedCard.FrameworkElement);
 
@@ -148,7 +148,7 @@ public sealed partial class ContentFormControl : UserControl
 
             // Recursively check children
             var result = FindFirstFocusableElement(child);
-            if (result != null)
+            if (result is not null)
             {
                 return result;
             }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/ContextMenu.xaml.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/ContextMenu.xaml.cs
index ac1e06aa36..bde733eea8 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/ContextMenu.xaml.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/ContextMenu.xaml.cs
@@ -31,7 +31,7 @@ public sealed partial class ContextMenu : UserControl,
         WeakReferenceMessenger.Default.Register<UpdateCommandBarMessage>(this);
         WeakReferenceMessenger.Default.Register<TryCommandKeybindingMessage>(this);
 
-        if (ViewModel != null)
+        if (ViewModel is not null)
         {
             ViewModel.PropertyChanged += ViewModel_PropertyChanged;
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/IconBox.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/IconBox.cs
index ba4c9d8c17..dd6d5fd4ff 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/IconBox.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/IconBox.cs
@@ -91,7 +91,7 @@ public partial class IconBox : ContentControl
     {
         if (d is IconBox @this)
         {
-            if (e.NewValue == null)
+            if (e.NewValue is null)
             {
                 @this.Source = null;
             }
@@ -104,7 +104,7 @@ public partial class IconBox : ContentControl
                     var requestedTheme = @this.ActualTheme;
                     var eventArgs = new SourceRequestedEventArgs(e.NewValue, requestedTheme);
 
-                    if (@this.SourceRequested != null)
+                    if (@this.SourceRequested is not null)
                     {
                         await @this.SourceRequested.InvokeAsync(@this, eventArgs);
 
@@ -142,7 +142,7 @@ public partial class IconBox : ContentControl
                             iconData = requestedTheme == ElementTheme.Light ? info.Light : info.Dark;
                         }
 
-                        if (iconData != null &&
+                        if (iconData is not null &&
                             @this.Source is FontIconSource)
                         {
                             if (!string.IsNullOrEmpty(iconData.Icon) && iconData.Icon.Length <= 2)
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/KeyVisual/KeyVisual.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/KeyVisual/KeyVisual.cs
index 609bcec62e..ed7022fce9 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/KeyVisual/KeyVisual.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/KeyVisual/KeyVisual.cs
@@ -2,7 +2,6 @@
 // The Microsoft Corporation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using Microsoft.CmdPal.UI;
 using Microsoft.UI.Xaml;
 using Microsoft.UI.Xaml.Controls;
 using Microsoft.UI.Xaml.Markup;
@@ -80,12 +79,12 @@ public sealed partial class KeyVisual : Control
 
     private void Update()
     {
-        if (_keyVisual == null)
+        if (_keyVisual is null)
         {
             return;
         }
 
-        if (_keyVisual.Content != null)
+        if (_keyVisual.Content is not null)
         {
             if (_keyVisual.Content.GetType() == typeof(string))
             {
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/SearchBar.xaml.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/SearchBar.xaml.cs
index d048a2ab04..7b34594b46 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/SearchBar.xaml.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/SearchBar.xaml.cs
@@ -51,13 +51,13 @@ public sealed partial class SearchBar : UserControl,
         //// TODO: If the Debounce timer hasn't fired, we may want to store the current Filter in the OldValue/prior VM, but we don't want that to go actually do work...
         var @this = (SearchBar)d;
 
-        if (@this != null
+        if (@this is not null
             && e.OldValue is PageViewModel old)
         {
             old.PropertyChanged -= @this.Page_PropertyChanged;
         }
 
-        if (@this != null
+        if (@this is not null
             && e.NewValue is PageViewModel page)
         {
             // TODO: In some cases we probably want commands to clear a filter
@@ -85,7 +85,7 @@ public sealed partial class SearchBar : UserControl,
         {
             this.FilterBox.Text = string.Empty;
 
-            if (CurrentPageViewModel != null)
+            if (CurrentPageViewModel is not null)
             {
                 CurrentPageViewModel.Filter = string.Empty;
             }
@@ -143,7 +143,7 @@ public sealed partial class SearchBar : UserControl,
                 FilterBox.Text = string.Empty;
 
                 // hack TODO GH #245
-                if (CurrentPageViewModel != null)
+                if (CurrentPageViewModel is not null)
                 {
                     CurrentPageViewModel.Filter = FilterBox.Text;
                 }
@@ -154,7 +154,7 @@ public sealed partial class SearchBar : UserControl,
         else if (e.Key == VirtualKey.Back)
         {
             // hack TODO GH #245
-            if (CurrentPageViewModel != null)
+            if (CurrentPageViewModel is not null)
             {
                 CurrentPageViewModel.Filter = FilterBox.Text;
             }
@@ -318,7 +318,7 @@ public sealed partial class SearchBar : UserControl,
         }
 
         // Actually plumb Filtering to the view model
-        if (CurrentPageViewModel != null)
+        if (CurrentPageViewModel is not null)
         {
             CurrentPageViewModel.Filter = FilterBox.Text;
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/ShortcutControl/ShortcutControl.xaml.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/ShortcutControl/ShortcutControl.xaml.cs
index b89a627d70..e7fa721277 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/ShortcutControl/ShortcutControl.xaml.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/ShortcutControl/ShortcutControl.xaml.cs
@@ -39,13 +39,13 @@ public sealed partial class ShortcutControl : UserControl, IDisposable, IRecipie
     private static void OnAllowDisableChanged(DependencyObject d, DependencyPropertyChangedEventArgs? e)
     {
         var me = d as ShortcutControl;
-        if (me == null)
+        if (me is null)
         {
             return;
         }
 
         var description = me.c?.FindDescendant<TextBlock>();
-        if (description == null)
+        if (description is null)
         {
             return;
         }
@@ -431,7 +431,7 @@ public sealed partial class ShortcutControl : UserControl, IDisposable, IRecipie
 
     private void ShortcutDialog_PrimaryButtonClick(ContentDialog sender, ContentDialogButtonClickEventArgs args)
     {
-        if (lastValidSettings != null && ComboIsValid(lastValidSettings))
+        if (lastValidSettings is not null && ComboIsValid(lastValidSettings))
         {
             HotkeySettings = lastValidSettings with { };
         }
@@ -458,7 +458,7 @@ public sealed partial class ShortcutControl : UserControl, IDisposable, IRecipie
 
     private static bool ComboIsValid(HotkeySettings? settings)
     {
-        return settings != null && (settings.IsValid() || settings.IsEmpty());
+        return settings is not null && (settings.IsValid() || settings.IsEmpty());
     }
 
     public void Receive(WindowActivatedEventArgs message) => DoWindowActivated(message);
@@ -466,12 +466,12 @@ public sealed partial class ShortcutControl : UserControl, IDisposable, IRecipie
     private void DoWindowActivated(WindowActivatedEventArgs args)
     {
         args.Handled = true;
-        if (args.WindowActivationState != WindowActivationState.Deactivated && (hook == null || hook.GetDisposedState() == true))
+        if (args.WindowActivationState != WindowActivationState.Deactivated && (hook is null || hook.GetDisposedState() == true))
         {
             // If the PT settings window gets focussed/activated again, we enable the keyboard hook to catch the keyboard input.
             hook = new HotkeySettingsControlHook(Hotkey_KeyDown, Hotkey_KeyUp, Hotkey_IsActive, FilterAccessibleKeyboardEvents);
         }
-        else if (args.WindowActivationState == WindowActivationState.Deactivated && hook != null && hook.GetDisposedState() == false)
+        else if (args.WindowActivationState == WindowActivationState.Deactivated && hook is not null && hook.GetDisposedState() == false)
         {
             // If the PT settings window lost focus/activation, we disable the keyboard hook to allow keyboard input on other windows.
             hook.Dispose();
@@ -490,7 +490,7 @@ public sealed partial class ShortcutControl : UserControl, IDisposable, IRecipie
         {
             if (disposing)
             {
-                if (hook != null)
+                if (hook is not null)
                 {
                     hook.Dispose();
                 }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/Tag.xaml.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/Tag.xaml.cs
index 9f96eebd1d..b74cc54687 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/Tag.xaml.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/Tag.xaml.cs
@@ -84,7 +84,7 @@ public partial class Tag : Control
             return;
         }
 
-        if (tag.ForegroundColor != null &&
+        if (tag.ForegroundColor is not null &&
             OptionalColorBrushCacheProvider.Convert(tag.ForegroundColor.Value) is SolidColorBrush brush)
         {
             tag.Foreground = brush;
@@ -114,7 +114,7 @@ public partial class Tag : Control
             return;
         }
 
-        if (tag.BackgroundColor != null &&
+        if (tag.BackgroundColor is not null &&
             OptionalColorBrushCacheProvider.Convert(tag.BackgroundColor.Value) is SolidColorBrush brush)
         {
             tag.Background = brush;
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI/ExtViews/ListPage.xaml.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI/ExtViews/ListPage.xaml.cs
index 48ad679c4e..475e2b964e 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI/ExtViews/ListPage.xaml.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI/ExtViews/ListPage.xaml.cs
@@ -74,7 +74,7 @@ public sealed partial class ListPage : Page,
         WeakReferenceMessenger.Default.Unregister<ActivateSelectedListItemMessage>(this);
         WeakReferenceMessenger.Default.Unregister<ActivateSecondaryCommandMessage>(this);
 
-        if (ViewModel != null)
+        if (ViewModel is not null)
         {
             ViewModel.PropertyChanged -= ViewModel_PropertyChanged;
             ViewModel.ItemsUpdated -= Page_ItemsUpdated;
@@ -142,13 +142,13 @@ public sealed partial class ListPage : Page,
         // here, then in Page_ItemsUpdated trying to select that cached item if
         // it's in the list (otherwise, clear the cache), but that seems
         // aggressively BODGY for something that mostly just works today.
-        if (ItemsList.SelectedItem != null)
+        if (ItemsList.SelectedItem is not null)
         {
             ItemsList.ScrollIntoView(ItemsList.SelectedItem);
 
             // Automation notification for screen readers
             var listViewPeer = Microsoft.UI.Xaml.Automation.Peers.ListViewAutomationPeer.CreatePeerForElement(ItemsList);
-            if (listViewPeer != null && li != null)
+            if (listViewPeer is not null && li is not null)
             {
                 var notificationText = li.Title;
                 listViewPeer.RaiseNotificationEvent(
@@ -165,7 +165,7 @@ public sealed partial class ListPage : Page,
         // Find the ScrollViewer in the ListView
         var listViewScrollViewer = FindScrollViewer(this.ItemsList);
 
-        if (listViewScrollViewer != null)
+        if (listViewScrollViewer is not null)
         {
             listViewScrollViewer.ViewChanged += ListViewScrollViewer_ViewChanged;
         }
@@ -174,7 +174,7 @@ public sealed partial class ListPage : Page,
     private void ListViewScrollViewer_ViewChanged(object? sender, ScrollViewerViewChangedEventArgs e)
     {
         var scrollView = sender as ScrollViewer;
-        if (scrollView == null)
+        if (scrollView is null)
         {
             return;
         }
@@ -256,7 +256,7 @@ public sealed partial class ListPage : Page,
                 page.PropertyChanged += @this.ViewModel_PropertyChanged;
                 page.ItemsUpdated += @this.Page_ItemsUpdated;
             }
-            else if (e.NewValue == null)
+            else if (e.NewValue is null)
             {
                 Logger.LogDebug("cleared view model");
             }
@@ -274,7 +274,7 @@ public sealed partial class ListPage : Page,
         // ItemsList_SelectionChanged again to give us another chance to change
         // the selection from null -> something. Better to just update the
         // selection once, at the end of all the updating.
-        if (ItemsList.SelectedItem == null)
+        if (ItemsList.SelectedItem is null)
         {
             ItemsList.SelectedIndex = 0;
         }
@@ -307,7 +307,7 @@ public sealed partial class ListPage : Page,
         {
             var child = VisualTreeHelper.GetChild(parent, i);
             var result = FindScrollViewer(child);
-            if (result != null)
+            if (result is not null)
             {
                 return result;
             }
@@ -329,7 +329,7 @@ public sealed partial class ListPage : Page,
             _ => (null, null),
         };
 
-        if (item == null || element == null)
+        if (item is null || element is null)
         {
             return;
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI/Helpers/GpoValueChecker.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI/Helpers/GpoValueChecker.cs
index fcd8ba1590..1c713c17c6 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI/Helpers/GpoValueChecker.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI/Helpers/GpoValueChecker.cs
@@ -2,13 +2,6 @@
 // The Microsoft Corporation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using Microsoft.CmdPal.Ext.Bookmarks;
-using Microsoft.UI.Xaml.Documents;
 using Microsoft.Win32;
 
 namespace Microsoft.CmdPal.UI.Helpers;
@@ -63,7 +56,7 @@ internal static class GpoValueChecker
     {
         using (RegistryKey? key = rootKey.OpenSubKey(subKeyPath, false))
         {
-            if (key == null)
+            if (key is null)
             {
                 return null;
             }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI/Helpers/IconCacheProvider.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI/Helpers/IconCacheProvider.cs
index b8860fa53d..2687909cfa 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI/Helpers/IconCacheProvider.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI/Helpers/IconCacheProvider.cs
@@ -4,7 +4,6 @@
 
 using Microsoft.CmdPal.Core.ViewModels;
 using Microsoft.CmdPal.UI.Controls;
-using Microsoft.CmdPal.UI.Helpers;
 
 namespace Microsoft.CmdPal.UI.Helpers;
 
@@ -19,7 +18,7 @@ public static partial class IconCacheProvider
     public static async void SourceRequested(IconBox sender, SourceRequestedEventArgs args)
 #pragma warning restore IDE0060 // Remove unused parameter
     {
-        if (args.Key == null)
+        if (args.Key is null)
         {
             return;
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI/Helpers/IconCacheService.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI/Helpers/IconCacheService.cs
index 59a6d04ca4..5d058166ff 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI/Helpers/IconCacheService.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI/Helpers/IconCacheService.cs
@@ -28,7 +28,7 @@ public sealed class IconCacheService(DispatcherQueue dispatcherQueue)
                 var source = IconPathConverter.IconSourceMUX(icon.Icon, false);
                 return source;
             }
-            else if (icon.Data != null)
+            else if (icon.Data is not null)
             {
                 try
                 {
@@ -49,7 +49,7 @@ public sealed class IconCacheService(DispatcherQueue dispatcherQueue)
 
     private async Task<IconSource?> StreamToIconSource(IRandomAccessStreamReference iconStreamRef)
     {
-        if (iconStreamRef == null)
+        if (iconStreamRef is null)
         {
             return null;
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI/Helpers/TrayIconService.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI/Helpers/TrayIconService.cs
index 60bc67eb3d..224c851ff1 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI/Helpers/TrayIconService.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI/Helpers/TrayIconService.cs
@@ -50,7 +50,7 @@ internal sealed partial class TrayIconService
     {
         if (showSystemTrayIcon ?? _settingsModel.ShowSystemTrayIcon)
         {
-            if (_window == null)
+            if (_window is null)
             {
                 _window = new Window();
                 _hwnd = new HWND(WindowNative.GetWindowHandle(_window));
@@ -64,7 +64,7 @@ internal sealed partial class TrayIconService
                 _originalWndProc = Marshal.GetDelegateForFunctionPointer<WNDPROC>(PInvoke.SetWindowLongPtr(_hwnd, WINDOW_LONG_PTR_INDEX.GWL_WNDPROC, hotKeyPrcPointer));
             }
 
-            if (_trayIconData == null)
+            if (_trayIconData is null)
             {
                 // We need to stash this handle, so it doesn't clean itself up. If
                 // explorer restarts, we'll come back through here, and we don't
@@ -88,7 +88,7 @@ internal sealed partial class TrayIconService
             // Add the notification icon
             PInvoke.Shell_NotifyIcon(NOTIFY_ICON_MESSAGE.NIM_ADD, in d);
 
-            if (_popupMenu == null)
+            if (_popupMenu is null)
             {
                 _popupMenu = PInvoke.CreatePopupMenu_SafeHandle();
                 PInvoke.InsertMenu(_popupMenu, 0, MENU_ITEM_FLAGS.MF_BYPOSITION | MENU_ITEM_FLAGS.MF_STRING, PInvoke.WM_USER + 1, RS_.GetString("TrayMenu_Settings"));
@@ -103,7 +103,7 @@ internal sealed partial class TrayIconService
 
     public void Destroy()
     {
-        if (_trayIconData != null)
+        if (_trayIconData is not null)
         {
             var d = (NOTIFYICONDATAW)_trayIconData;
             if (PInvoke.Shell_NotifyIcon(NOTIFY_ICON_MESSAGE.NIM_DELETE, in d))
@@ -112,19 +112,19 @@ internal sealed partial class TrayIconService
             }
         }
 
-        if (_popupMenu != null)
+        if (_popupMenu is not null)
         {
             _popupMenu.Close();
             _popupMenu = null;
         }
 
-        if (_largeIcon != null)
+        if (_largeIcon is not null)
         {
             _largeIcon.Close();
             _largeIcon = null;
         }
 
-        if (_window != null)
+        if (_window is not null)
         {
             _window.Close();
             _window = null;
@@ -167,7 +167,7 @@ internal sealed partial class TrayIconService
             // WM_WINDOWPOSCHANGING which is always received on explorer startup sequence.
             case PInvoke.WM_WINDOWPOSCHANGING:
                 {
-                    if (_trayIconData == null)
+                    if (_trayIconData is null)
                     {
                         SetupTrayIcon();
                     }
@@ -189,7 +189,7 @@ internal sealed partial class TrayIconService
                     {
                         case PInvoke.WM_RBUTTONUP:
                             {
-                                if (_popupMenu != null)
+                                if (_popupMenu is not null)
                                 {
                                     PInvoke.GetCursorPos(out var cursorPos);
                                     PInvoke.SetForegroundWindow(_hwnd);
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI/Helpers/TypedEventHandlerExtensions.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI/Helpers/TypedEventHandlerExtensions.cs
index 561ad4592d..8671f90f81 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI/Helpers/TypedEventHandlerExtensions.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI/Helpers/TypedEventHandlerExtensions.cs
@@ -46,7 +46,7 @@ public static class TypedEventHandlerExtensions
 #pragma warning restore CA1715 // Identifiers should have correct prefix
         where R : DeferredEventArgs
     {
-        if (eventHandler == null)
+        if (eventHandler is null)
         {
             return Task.CompletedTask;
         }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI/Helpers/WindowHelper.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI/Helpers/WindowHelper.cs
index c0d257088e..deddf13d5d 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI/Helpers/WindowHelper.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI/Helpers/WindowHelper.cs
@@ -13,7 +13,7 @@ internal sealed partial class WindowHelper
         UserNotificationState state;
 
         // https://learn.microsoft.com/en-us/windows/win32/api/shellapi/ne-shellapi-query_user_notification_state
-        if (Marshal.GetExceptionForHR(NativeMethods.SHQueryUserNotificationState(out state)) == null)
+        if (Marshal.GetExceptionForHR(NativeMethods.SHQueryUserNotificationState(out state)) is null)
         {
             if (state == UserNotificationState.QUNS_RUNNING_D3D_FULL_SCREEN ||
                 state == UserNotificationState.QUNS_BUSY ||
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI/MainWindow.xaml.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI/MainWindow.xaml.cs
index 49a8eacceb..012ec3ccf6 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI/MainWindow.xaml.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI/MainWindow.xaml.cs
@@ -384,7 +384,7 @@ public sealed partial class MainWindow : WindowEx,
 
     private void DisposeAcrylic()
     {
-        if (_acrylicController != null)
+        if (_acrylicController is not null)
         {
             _acrylicController.Dispose();
             _acrylicController = null!;
@@ -459,7 +459,7 @@ public sealed partial class MainWindow : WindowEx,
             PowerToysTelemetry.Log.WriteEvent(new CmdPalDismissedOnLostFocus());
         }
 
-        if (_configurationSource != null)
+        if (_configurationSource is not null)
         {
             _configurationSource.IsInputActive = args.WindowActivationState != WindowActivationState.Deactivated;
         }
@@ -467,7 +467,7 @@ public sealed partial class MainWindow : WindowEx,
 
     public void HandleLaunch(AppActivationArguments? activatedEventArgs)
     {
-        if (activatedEventArgs == null)
+        if (activatedEventArgs is null)
         {
             Summon(string.Empty);
             return;
@@ -535,7 +535,7 @@ public sealed partial class MainWindow : WindowEx,
         UnregisterHotkeys();
 
         var globalHotkey = settings.Hotkey;
-        if (globalHotkey != null)
+        if (globalHotkey is not null)
         {
             if (settings.UseLowLevelGlobalHotkey)
             {
@@ -565,7 +565,7 @@ public sealed partial class MainWindow : WindowEx,
         {
             var key = commandHotkey.Hotkey;
 
-            if (key != null)
+            if (key is not null)
             {
                 if (settings.UseLowLevelGlobalHotkey)
                 {
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI/Pages/LoadingPage.xaml.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI/Pages/LoadingPage.xaml.cs
index ed234c4d54..2883321236 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI/Pages/LoadingPage.xaml.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI/Pages/LoadingPage.xaml.cs
@@ -24,7 +24,7 @@ public sealed partial class LoadingPage : Page
     protected override void OnNavigatedTo(NavigationEventArgs e)
     {
         if (e.Parameter is ShellViewModel shellVM
-            && shellVM.LoadCommand != null)
+            && shellVM.LoadCommand is not null)
         {
             // This will load the built-in commands, then navigate to the main page.
             // Once the mainpage loads, we'll start loading extensions.
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI/Pages/ShellPage.xaml.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI/Pages/ShellPage.xaml.cs
index 1bc0fefb5a..2c8788faa8 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI/Pages/ShellPage.xaml.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI/Pages/ShellPage.xaml.cs
@@ -171,7 +171,7 @@ public sealed partial class ShellPage : Microsoft.UI.Xaml.Controls.Page,
     // This gets called from the UI thread
     private async Task HandleConfirmArgsOnUiThread(IConfirmationArgs? args)
     {
-        if (args == null)
+        if (args is null)
         {
             return;
         }
@@ -236,7 +236,7 @@ public sealed partial class ShellPage : Microsoft.UI.Xaml.Controls.Page,
 
     public void OpenSettings()
     {
-        if (_settingsWindow == null)
+        if (_settingsWindow is null)
         {
             _settingsWindow = new SettingsWindow();
         }
@@ -324,7 +324,7 @@ public sealed partial class ShellPage : Microsoft.UI.Xaml.Controls.Page,
                 // command from our list of toplevel commands.
                 var tlcManager = App.Current.Services.GetService<TopLevelCommandManager>()!;
                 var topLevelCommand = tlcManager.LookupCommand(commandId);
-                if (topLevelCommand != null)
+                if (topLevelCommand is not null)
                 {
                     var command = topLevelCommand.CommandViewModel.Model.Unsafe;
                     var isPage = command is not IInvokableCommand;
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI/PowerToysRootPageService.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI/PowerToysRootPageService.cs
index 60bd5e9360..e7ba073a9b 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI/PowerToysRootPageService.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI/PowerToysRootPageService.cs
@@ -100,7 +100,7 @@ internal sealed class PowerToysRootPageService : IRootPageService
             _activeExtension = extension;
 
             var extensionWinRtObject = _activeExtension?.GetExtensionObject();
-            if (extensionWinRtObject != null)
+            if (extensionWinRtObject is not null)
             {
                 try
                 {
diff --git a/src/modules/cmdpal/Tests/Microsoft.CmdPal.Ext.Calc.UnitTests/NumberTranslatorTests.cs b/src/modules/cmdpal/Tests/Microsoft.CmdPal.Ext.Calc.UnitTests/NumberTranslatorTests.cs
index f85e252df2..d6dbfc0f02 100644
--- a/src/modules/cmdpal/Tests/Microsoft.CmdPal.Ext.Calc.UnitTests/NumberTranslatorTests.cs
+++ b/src/modules/cmdpal/Tests/Microsoft.CmdPal.Ext.Calc.UnitTests/NumberTranslatorTests.cs
@@ -18,8 +18,8 @@ public class NumberTranslatorTests
     public void Create_ThrowError_WhenCalledNullOrEmpty(string sourceCultureName, string targetCultureName)
     {
         // Arrange
-        CultureInfo sourceCulture = sourceCultureName != null ? new CultureInfo(sourceCultureName) : null;
-        CultureInfo targetCulture = targetCultureName != null ? new CultureInfo(targetCultureName) : null;
+        CultureInfo sourceCulture = sourceCultureName is not null ? new CultureInfo(sourceCultureName) : null;
+        CultureInfo targetCulture = targetCultureName is not null ? new CultureInfo(targetCultureName) : null;
 
         // Act
         Assert.ThrowsException<ArgumentNullException>(() => NumberTranslator.Create(sourceCulture, targetCulture));
diff --git a/src/modules/cmdpal/Tests/Microsoft.CmdPal.Ext.TimeDate.UnitTests/TimeAndDateHelperTests.cs b/src/modules/cmdpal/Tests/Microsoft.CmdPal.Ext.TimeDate.UnitTests/TimeAndDateHelperTests.cs
index 681e2be2f9..90ec826a95 100644
--- a/src/modules/cmdpal/Tests/Microsoft.CmdPal.Ext.TimeDate.UnitTests/TimeAndDateHelperTests.cs
+++ b/src/modules/cmdpal/Tests/Microsoft.CmdPal.Ext.TimeDate.UnitTests/TimeAndDateHelperTests.cs
@@ -45,7 +45,7 @@ public class TimeAndDateHelperTests
         var result = TimeAndDateHelper.GetCalendarWeekRule(setting);
 
         // Assert
-        if (valueExpected == null)
+        if (valueExpected is null)
         {
             // falls back to system setting.
             Assert.AreEqual(DateTimeFormatInfo.CurrentInfo.CalendarWeekRule, result);
@@ -72,7 +72,7 @@ public class TimeAndDateHelperTests
         var result = TimeAndDateHelper.GetFirstDayOfWeek(setting);
 
         // Assert
-        if (valueExpected == null)
+        if (valueExpected is null)
         {
             // falls back to system setting.
             Assert.AreEqual(DateTimeFormatInfo.CurrentInfo.FirstDayOfWeek, result);
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/AllAppsPage.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/AllAppsPage.cs
index 4c8b5baedc..35cac8b01c 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/AllAppsPage.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/AllAppsPage.cs
@@ -2,16 +2,12 @@
 // The Microsoft Corporation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using System;
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.Linq;
-using System.Numerics;
-using System.Runtime.CompilerServices;
 using System.Threading;
 using System.Threading.Tasks;
 using ManagedCommon;
-using Microsoft.CmdPal.Ext.Apps.Commands;
 using Microsoft.CmdPal.Ext.Apps.Programs;
 using Microsoft.CmdPal.Ext.Apps.Properties;
 using Microsoft.CmdPal.Ext.Apps.State;
@@ -145,7 +141,7 @@ public sealed partial class AllAppsPage : ListPage
         */
         var existingAppItem = allApps.FirstOrDefault(f => f.AppIdentifier == e.AppIdentifier);
 
-        if (existingAppItem != null)
+        if (existingAppItem is not null)
         {
             var appListItem = new AppListItem(existingAppItem, true, e.IsPinned);
 
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/AppCache.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/AppCache.cs
index a0c3f7c363..746bfdfe9d 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/AppCache.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/AppCache.cs
@@ -4,7 +4,6 @@
 
 using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Linq;
 using System.Threading.Tasks;
 using Microsoft.CmdPal.Ext.Apps.Programs;
@@ -66,7 +65,7 @@ public sealed partial class AppCache : IDisposable
 
     private void UpdateUWPIconPath(Theme theme)
     {
-        if (_packageRepository != null)
+        if (_packageRepository is not null)
         {
             foreach (UWPApplication app in _packageRepository)
             {
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/AppListItem.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/AppListItem.cs
index 4ac8f79aea..1a3efacd97 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/AppListItem.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/AppListItem.cs
@@ -72,7 +72,7 @@ internal sealed partial class AppListItem : ListItem
             try
             {
                 var stream = await ThumbnailHelper.GetThumbnail(_app.ExePath, true);
-                if (stream != null)
+                if (stream is not null)
                 {
                     heroImage = IconInfo.FromStream(stream);
                 }
@@ -106,7 +106,7 @@ internal sealed partial class AppListItem : ListItem
             try
             {
                 var stream = await ThumbnailHelper.GetThumbnail(_app.ExePath);
-                if (stream != null)
+                if (stream is not null)
                 {
                     var data = new IconData(RandomAccessStreamReference.CreateFromStream(stream));
                     icon = new IconInfo(data, data);
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Programs/AppxPackageHelper.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Programs/AppxPackageHelper.cs
index ef81410898..61f581d2dd 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Programs/AppxPackageHelper.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Programs/AppxPackageHelper.cs
@@ -6,9 +6,7 @@ using System;
 using System.Collections.Generic;
 using ManagedCommon;
 using Microsoft.CmdPal.Ext.Apps.Utils;
-using Microsoft.UI.Xaml.Controls;
 using Windows.Win32;
-using Windows.Win32.Foundation;
 using Windows.Win32.Storage.Packaging.Appx;
 using Windows.Win32.System.Com;
 
@@ -51,14 +49,14 @@ public static class AppxPackageHelper
                 {
                     result.Add((IntPtr)manifestApp);
                 }
-                else if (manifestApp != null)
+                else if (manifestApp is not null)
                 {
                     manifestApp->Release();
                 }
             }
             catch (Exception ex)
             {
-                if (manifestApp != null)
+                if (manifestApp is not null)
                 {
                     manifestApp->Release();
                 }
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Programs/PackageManagerWrapper.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Programs/PackageManagerWrapper.cs
index be70a0ba95..38337c4462 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Programs/PackageManagerWrapper.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Programs/PackageManagerWrapper.cs
@@ -22,11 +22,11 @@ public class PackageManagerWrapper : IPackageManager
     {
         var user = WindowsIdentity.GetCurrent().User;
 
-        if (user != null)
+        if (user is not null)
         {
             var pkgs = _packageManager.FindPackagesForUser(user.Value);
 
-            return pkgs.Select(PackageWrapper.GetWrapperFromPackage).Where(package => package != null);
+            return pkgs.Select(PackageWrapper.GetWrapperFromPackage).Where(package => package is not null);
         }
 
         return Enumerable.Empty<IPackage>();
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Programs/UWP.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Programs/UWP.cs
index 9be6cc9eb2..01a518f057 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Programs/UWP.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Programs/UWP.cs
@@ -11,9 +11,7 @@ using System.Threading.Tasks;
 using System.Xml.Linq;
 using ManagedCommon;
 using Microsoft.CmdPal.Ext.Apps.Utils;
-using Microsoft.CommandPalette.Extensions.Toolkit;
 using Windows.Win32;
-using Windows.Win32.Foundation;
 using Windows.Win32.Storage.Packaging.Appx;
 using Windows.Win32.System.Com;
 
@@ -99,7 +97,7 @@ public partial class UWP
     private static string[] XmlNamespaces(string path)
     {
         var z = XDocument.Load(path);
-        if (z.Root != null)
+        if (z.Root is not null)
         {
             var namespaces = z.Root.Attributes().
                 Where(a => a.IsNamespaceDeclaration).
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Programs/UWPApplication.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Programs/UWPApplication.cs
index 5c689545bd..484dc162ee 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Programs/UWPApplication.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Programs/UWPApplication.cs
@@ -308,7 +308,7 @@ public class UWPApplication : IProgram
     private bool SetScaleIcons(string path, string colorscheme, bool highContrast = false)
     {
         var extension = Path.GetExtension(path);
-        if (extension != null)
+        if (extension is not null)
         {
             var end = path.Length - extension.Length;
             var prefix = path.Substring(0, end);
@@ -363,7 +363,7 @@ public class UWPApplication : IProgram
     private bool SetTargetSizeIcon(string path, string colorscheme, bool highContrast = false)
     {
         var extension = Path.GetExtension(path);
-        if (extension != null)
+        if (extension is not null)
         {
             var end = path.Length - extension.Length;
             var prefix = path.Substring(0, end);
@@ -576,7 +576,7 @@ public class UWPApplication : IProgram
 
             var group = new DrawingGroup();
             var converted = ColorConverter.ConvertFromString(currentBackgroundColor);
-            if (converted != null)
+            if (converted is not null)
             {
                 var color = (Color)converted;
                 var brush = new SolidColorBrush(color);
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Programs/Win32Program.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Programs/Win32Program.cs
index 74819d87c7..bf9e5f7334 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Programs/Win32Program.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Programs/Win32Program.cs
@@ -170,7 +170,7 @@ public class Win32Program : IProgram
 
     public bool QueryEqualsNameForRunCommands(string query)
     {
-        if (query != null && AppType == ApplicationType.RunCommand)
+        if (query is not null && AppType == ApplicationType.RunCommand)
         {
             // Using OrdinalIgnoreCase since this is used internally
             if (!query.Equals(Name, StringComparison.OrdinalIgnoreCase) && !query.Equals(ExecutableName, StringComparison.OrdinalIgnoreCase))
@@ -667,7 +667,7 @@ public class Win32Program : IProgram
         var paths = new List<string>();
         using (var root = Registry.LocalMachine.OpenSubKey(appPaths))
         {
-            if (root != null)
+            if (root is not null)
             {
                 paths.AddRange(GetPathsFromRegistry(root));
             }
@@ -675,7 +675,7 @@ public class Win32Program : IProgram
 
         using (var root = Registry.CurrentUser.OpenSubKey(appPaths))
         {
-            if (root != null)
+            if (root is not null)
             {
                 paths.AddRange(GetPathsFromRegistry(root));
             }
@@ -700,7 +700,7 @@ public class Win32Program : IProgram
         {
             using (var key = root.OpenSubKey(subkey))
             {
-                if (key == null)
+                if (key is null)
                 {
                     return string.Empty;
                 }
@@ -742,13 +742,13 @@ public class Win32Program : IProgram
 
         public bool Equals(Win32Program? app1, Win32Program? app2)
         {
-            if (app1 == null && app2 == null)
+            if (app1 is null && app2 is null)
             {
                 return true;
             }
 
-            return app1 != null
-                    && app2 != null
+            return app1 is not null
+                    && app2 is not null
                     && (app1.Name?.ToUpperInvariant(), app1.ExecutableName?.ToUpperInvariant(), app1.FullPath?.ToUpperInvariant())
                     .Equals((app2.Name?.ToUpperInvariant(), app2.ExecutableName?.ToUpperInvariant(), app2.FullPath?.ToUpperInvariant()));
         }
@@ -908,7 +908,7 @@ public class Win32Program : IProgram
             Parallel.ForEach(paths, source =>
             {
                 var program = GetProgramFromPath(source);
-                if (program != null)
+                if (program is not null)
                 {
                     programsList.Add(program);
                 }
@@ -918,7 +918,7 @@ public class Win32Program : IProgram
             Parallel.ForEach(runCommandPaths, source =>
             {
                 var program = GetRunCommandProgramFromPath(source);
-                if (program != null)
+                if (program is not null)
                 {
                     runCommandProgramsList.Add(program);
                 }
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Storage/FileSystemWatcherWrapper.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Storage/FileSystemWatcherWrapper.cs
index 436e7e44c1..f7fac6e12d 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Storage/FileSystemWatcherWrapper.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Storage/FileSystemWatcherWrapper.cs
@@ -19,7 +19,7 @@ public sealed partial class FileSystemWatcherWrapper : FileSystemWatcher, IFileS
         get => this.Filters;
         set
         {
-            if (value != null)
+            if (value is not null)
             {
                 foreach (var filter in value)
                 {
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Storage/Win32ProgramRepository.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Storage/Win32ProgramRepository.cs
index 6fdb5e49f6..98da723743 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Storage/Win32ProgramRepository.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Storage/Win32ProgramRepository.cs
@@ -10,7 +10,6 @@ using System.Diagnostics.CodeAnalysis;
 using System.IO;
 using System.Threading.Tasks;
 using ManagedCommon;
-using Microsoft.CmdPal.Ext.Apps.Programs;
 using Win32Program = Microsoft.CmdPal.Ext.Apps.Programs.Win32Program;
 
 namespace Microsoft.CmdPal.Ext.Apps.Storage;
@@ -53,7 +52,7 @@ internal sealed partial class Win32ProgramRepository : ListRepository<Programs.W
                 if (!string.IsNullOrEmpty(appPath))
                 {
                     Win32Program? app = Win32Program.GetAppFromPath(appPath);
-                    if (app != null)
+                    if (app is not null)
                     {
                         Add(app);
                         _isDirty = true;
@@ -137,7 +136,7 @@ internal sealed partial class Win32ProgramRepository : ListRepository<Programs.W
         }
 
         // To remove the old app which has been renamed and to add the new application.
-        if (oldApp != null)
+        if (oldApp is not null)
         {
             if (string.IsNullOrWhiteSpace(oldApp.Name) || string.IsNullOrWhiteSpace(oldApp.ExecutableName) || string.IsNullOrWhiteSpace(oldApp.FullPath))
             {
@@ -149,7 +148,7 @@ internal sealed partial class Win32ProgramRepository : ListRepository<Programs.W
             }
         }
 
-        if (newApp != null)
+        if (newApp is not null)
         {
             Add(newApp);
             _isDirty = true;
@@ -177,7 +176,7 @@ internal sealed partial class Win32ProgramRepository : ListRepository<Programs.W
             if (extension.Equals(LnkExtension, StringComparison.OrdinalIgnoreCase))
             {
                 app = GetAppWithSameLnkFilePath(path);
-                if (app == null)
+                if (app is null)
                 {
                     // Cancelled links won't have a resolved path.
                     app = GetAppWithSameNameAndExecutable(Path.GetFileNameWithoutExtension(path), Path.GetFileName(path));
@@ -197,7 +196,7 @@ internal sealed partial class Win32ProgramRepository : ListRepository<Programs.W
             Logger.LogError(ex.Message);
         }
 
-        if (app != null)
+        if (app is not null)
         {
             Remove(app);
             _isDirty = true;
@@ -244,7 +243,7 @@ internal sealed partial class Win32ProgramRepository : ListRepository<Programs.W
         if (!Path.GetExtension(path).Equals(UrlExtension, StringComparison.OrdinalIgnoreCase) && !Path.GetExtension(path).Equals(LnkExtension, StringComparison.OrdinalIgnoreCase))
         {
             Programs.Win32Program? app = Programs.Win32Program.GetAppFromPath(path);
-            if (app != null)
+            if (app is not null)
             {
                 Add(app);
                 _isDirty = true;
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Utils/ComFreeHelper.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Utils/ComFreeHelper.cs
index 5f11987f76..d298f05663 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Utils/ComFreeHelper.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Utils/ComFreeHelper.cs
@@ -2,7 +2,6 @@
 // The Microsoft Corporation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using System;
 using Windows.Win32;
 using Windows.Win32.Foundation;
 using Windows.Win32.System.Com;
@@ -27,7 +26,7 @@ public static class ComFreeHelper
     public static unsafe void ComObjectRelease<T>(T* comPtr)
         where T : unmanaged
     {
-        if (comPtr != null)
+        if (comPtr is not null)
         {
             ((IUnknown*)comPtr)->Release();
         }
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Utils/ShellLinkHelper.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Utils/ShellLinkHelper.cs
index 543abf5dcf..11652c7524 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Utils/ShellLinkHelper.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Utils/ShellLinkHelper.cs
@@ -3,8 +3,6 @@
 // See the LICENSE file in the project root for more information.
 
 using System;
-using System.Text;
-using ManagedCommon;
 using Windows.Win32;
 using Windows.Win32.Foundation;
 using Windows.Win32.System.Com;
@@ -37,7 +35,7 @@ public class ShellLinkHelper : IShellLinkHelper
         IPersistFile* persistFile = null;
         Guid iid = typeof(IPersistFile).GUID;
         ((IUnknown*)link)->QueryInterface(&iid, (void**)&persistFile);
-        if (persistFile != null)
+        if (persistFile is not null)
         {
             using var persistFileHandle = new SafeComHandle((IntPtr)persistFile);
             try
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Utils/ShellLocalization.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Utils/ShellLocalization.cs
index 87e152b7e0..c157847861 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Utils/ShellLocalization.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Utils/ShellLocalization.cs
@@ -45,7 +45,7 @@ public class ShellLocalization
 
             var filename = ComFreeHelper.GetStringAndFree(hr, filenamePtr);
 
-            if (filename == null)
+            if (filename is null)
             {
                 return string.Empty;
             }
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Utils/ThemeHelper.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Utils/ThemeHelper.cs
index 8175667d0a..005f1962f6 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Utils/ThemeHelper.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Utils/ThemeHelper.cs
@@ -32,7 +32,7 @@ public static class ThemeHelper
 
         // Retrieve the registry value, which is a DWORD (0 or 1)
         var registryValueObj = Registry.GetValue(registryKey, registryValue, null);
-        if (registryValueObj != null)
+        if (registryValueObj is not null)
         {
             // 0 = Dark mode, 1 = Light mode
             var isLightMode = Convert.ToBoolean((int)registryValueObj, CultureInfo.InvariantCulture);
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Bookmark/AddBookmarkForm.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Bookmark/AddBookmarkForm.cs
index c5f0b4ea3e..93fc6d8d01 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Bookmark/AddBookmarkForm.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Bookmark/AddBookmarkForm.cs
@@ -63,7 +63,7 @@ internal sealed partial class AddBookmarkForm : FormContent
     public override CommandResult SubmitForm(string payload)
     {
         var formInput = JsonNode.Parse(payload);
-        if (formInput == null)
+        if (formInput is null)
         {
             return CommandResult.GoHome();
         }
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Bookmark/BookmarkPlaceholderForm.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Bookmark/BookmarkPlaceholderForm.cs
index 4aac3e600e..965f42d1b0 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Bookmark/BookmarkPlaceholderForm.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Bookmark/BookmarkPlaceholderForm.cs
@@ -73,7 +73,7 @@ internal sealed partial class BookmarkPlaceholderForm : FormContent
         // parse the submitted JSON and then open the link
         var formInput = JsonNode.Parse(payload);
         var formObject = formInput?.AsObject();
-        if (formObject == null)
+        if (formObject is null)
         {
             return CommandResult.GoHome();
         }
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Bookmark/BookmarksCommandProvider.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Bookmark/BookmarksCommandProvider.cs
index 91d9f902cb..081fb2bccb 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Bookmark/BookmarksCommandProvider.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Bookmark/BookmarksCommandProvider.cs
@@ -49,7 +49,7 @@ public partial class BookmarksCommandProvider : CommandProvider
 
     private void SaveAndUpdateCommands()
     {
-        if (_bookmarks != null)
+        if (_bookmarks is not null)
         {
             var jsonPath = BookmarksCommandProvider.StateJsonPath();
             Bookmarks.WriteToFile(jsonPath, _bookmarks);
@@ -64,12 +64,12 @@ public partial class BookmarksCommandProvider : CommandProvider
         List<CommandItem> collected = [];
         collected.Add(new CommandItem(_addNewCommand));
 
-        if (_bookmarks == null)
+        if (_bookmarks is null)
         {
             LoadBookmarksFromFile();
         }
 
-        if (_bookmarks != null)
+        if (_bookmarks is not null)
         {
             collected.AddRange(_bookmarks.Data.Select(BookmarkToCommandItem));
         }
@@ -93,7 +93,7 @@ public partial class BookmarksCommandProvider : CommandProvider
             Logger.LogError(ex.Message);
         }
 
-        if (_bookmarks == null)
+        if (_bookmarks is null)
         {
             _bookmarks = new();
         }
@@ -134,7 +134,7 @@ public partial class BookmarksCommandProvider : CommandProvider
             name: Resources.bookmarks_delete_name,
             action: () =>
             {
-                if (_bookmarks != null)
+                if (_bookmarks is not null)
                 {
                     ExtensionHost.LogMessage($"Deleting bookmark ({bookmark.Name},{bookmark.Bookmark})");
 
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Bookmark/UrlCommand.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Bookmark/UrlCommand.cs
index d94f4619f1..db60a31940 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Bookmark/UrlCommand.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Bookmark/UrlCommand.cs
@@ -73,7 +73,7 @@ public partial class UrlCommand : InvokableCommand
         if (string.IsNullOrEmpty(args))
         {
             var uri = GetUri(exe);
-            if (uri != null)
+            if (uri is not null)
             {
                 _ = Launcher.LaunchUriAsync(uri);
             }
@@ -109,7 +109,7 @@ public partial class UrlCommand : InvokableCommand
         // First, try to get the icon from the thumbnail helper
         // This works for local files and folders
         icon = await MaybeGetIconForPath(target);
-        if (icon != null)
+        if (icon is not null)
         {
             return icon;
         }
@@ -142,7 +142,7 @@ public partial class UrlCommand : InvokableCommand
         {
             // If the executable exists, try to get the icon from the file
             icon = await MaybeGetIconForPath(fullExePath);
-            if (icon != null)
+            if (icon is not null)
             {
                 return icon;
             }
@@ -154,7 +154,7 @@ public partial class UrlCommand : InvokableCommand
         try
         {
             var uri = GetUri(baseString);
-            if (uri != null)
+            if (uri is not null)
             {
                 var hostname = uri.Host;
                 var faviconUrl = $"{uri.Scheme}://{hostname}/favicon.ico";
@@ -176,7 +176,7 @@ public partial class UrlCommand : InvokableCommand
         try
         {
             var stream = await ThumbnailHelper.GetThumbnail(target);
-            if (stream != null)
+            if (stream is not null)
             {
                 var data = new IconData(RandomAccessStreamReference.CreateFromStream(stream));
                 return new IconInfo(data, data);
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Calc/Helper/NumberTranslator.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Calc/Helper/NumberTranslator.cs
index 7331c44b40..34da2872cf 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Calc/Helper/NumberTranslator.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Calc/Helper/NumberTranslator.cs
@@ -107,7 +107,7 @@ public class NumberTranslator
             // Currently, we only convert base literals (hexadecimal, binary, octal) to decimal.
             var converted = ConvertBaseLiteral(token, cultureTo);
 
-            if (converted != null)
+            if (converted is not null)
             {
                 outputBuilder.Append(converted);
                 continue;
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Calc/Helper/ResultHelper.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Calc/Helper/ResultHelper.cs
index f53fadaa52..cd2b811567 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Calc/Helper/ResultHelper.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Calc/Helper/ResultHelper.cs
@@ -16,7 +16,7 @@ public static class ResultHelper
     public static ListItem CreateResult(decimal? roundedResult, CultureInfo inputCulture, CultureInfo outputCulture, string query, ISettingsInterface settings, TypedEventHandler<object, object> handleSave)
     {
         // Return null when the expression is not a valid calculator query.
-        if (roundedResult == null)
+        if (roundedResult is null)
         {
             return null;
         }
@@ -48,7 +48,7 @@ public static class ResultHelper
     public static ListItem CreateResult(decimal? roundedResult, CultureInfo inputCulture, CultureInfo outputCulture, string query)
     {
         // Return null when the expression is not a valid calculator query.
-        if (roundedResult == null)
+        if (roundedResult is null)
         {
             return null;
         }
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Calc/Pages/CalculatorListPage.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Calc/Pages/CalculatorListPage.cs
index d4b7f6d135..72e5f3db30 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Calc/Pages/CalculatorListPage.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Calc/Pages/CalculatorListPage.cs
@@ -82,7 +82,7 @@ public sealed partial class CalculatorListPage : DynamicListPage
         {
             this._items.Clear();
 
-            if (result != null)
+            if (result is not null)
             {
                 this._items.Add(result);
             }
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Calc/Pages/FallbackCalculatorItem.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Calc/Pages/FallbackCalculatorItem.cs
index 5dc85ae51f..4367c67810 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Calc/Pages/FallbackCalculatorItem.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Calc/Pages/FallbackCalculatorItem.cs
@@ -28,7 +28,7 @@ public sealed partial class FallbackCalculatorItem : FallbackCommandItem
     {
         var result = QueryHelper.Query(query, _settings, true, null);
 
-        if (result == null)
+        if (result is null)
         {
             _copyCommand.Text = string.Empty;
             _copyCommand.Name = string.Empty;
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.ClipboardHistory/Helpers/ClipboardHelper.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.ClipboardHistory/Helpers/ClipboardHelper.cs
index 066d8822f3..87937c8100 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.ClipboardHistory/Helpers/ClipboardHelper.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.ClipboardHistory/Helpers/ClipboardHelper.cs
@@ -139,7 +139,7 @@ internal static class ClipboardHelper
         switch (clipboardFormat)
         {
             case ClipboardFormat.Text:
-                if (clipboardItem.Content == null)
+                if (clipboardItem.Content is null)
                 {
                     ExtensionHost.LogMessage(new LogMessage() { Message = "No valid clipboard content" });
                     return;
@@ -152,7 +152,7 @@ internal static class ClipboardHelper
                 break;
 
             case ClipboardFormat.Image:
-                if (clipboardItem.ImageData == null)
+                if (clipboardItem.ImageData is null)
                 {
                     ExtensionHost.LogMessage(new LogMessage() { Message = "No valid clipboard content" });
                     return;
@@ -240,7 +240,7 @@ internal static class ClipboardHelper
     internal static async Task<SoftwareBitmap?> GetClipboardImageContentAsync(DataPackageView clipboardData)
     {
         using var stream = await GetClipboardImageStreamAsync(clipboardData);
-        if (stream != null)
+        if (stream is not null)
         {
             var decoder = await BitmapDecoder.CreateAsync(stream);
             return await decoder.GetSoftwareBitmapAsync();
@@ -255,7 +255,7 @@ internal static class ClipboardHelper
         {
             var storageItems = await clipboardData.GetStorageItemsAsync();
             var file = storageItems.Count == 1 ? storageItems[0] as StorageFile : null;
-            if (file != null)
+            if (file is not null)
             {
                 return await file.OpenReadAsync();
             }
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.ClipboardHistory/Models/ClipboardItem.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.ClipboardHistory/Models/ClipboardItem.cs
index 94c5a86dc3..ec01883b87 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.ClipboardHistory/Models/ClipboardItem.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.ClipboardHistory/Models/ClipboardItem.cs
@@ -37,7 +37,7 @@ public class ClipboardItem
     }
 
     [MemberNotNullWhen(true, nameof(ImageData))]
-    private bool IsImage => ImageData != null;
+    private bool IsImage => ImageData is not null;
 
     [MemberNotNullWhen(true, nameof(Content))]
     private bool IsText => !string.IsNullOrEmpty(Content);
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.ClipboardHistory/Pages/ClipboardHistoryListPage.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.ClipboardHistory/Pages/ClipboardHistoryListPage.cs
index b8cccb987b..b6b72afba3 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.ClipboardHistory/Pages/ClipboardHistoryListPage.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.ClipboardHistory/Pages/ClipboardHistoryListPage.cs
@@ -54,7 +54,7 @@ internal sealed partial class ClipboardHistoryListPage : ListPage
         try
         {
             var allowClipboardHistory = Registry.GetValue(registryKey, "AllowClipboardHistory", null);
-            return allowClipboardHistory != null ? (int)allowClipboardHistory == 0 : false;
+            return allowClipboardHistory is not null ? (int)allowClipboardHistory == 0 : false;
         }
         catch (Exception)
         {
@@ -100,7 +100,7 @@ internal sealed partial class ClipboardHistoryListPage : ListPage
                 {
                     var imageReceived = await item.Item.Content.GetBitmapAsync();
 
-                    if (imageReceived != null)
+                    if (imageReceived is not null)
                     {
                         item.ImageData = imageReceived;
                     }
@@ -141,7 +141,7 @@ internal sealed partial class ClipboardHistoryListPage : ListPage
         for (var i = 0; i < clipboardHistory.Count; i++)
         {
             var item = clipboardHistory[i];
-            if (item != null)
+            if (item is not null)
             {
                 listItems.Add(item.ToListItem());
             }
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/FallbackOpenFileItem.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/FallbackOpenFileItem.cs
index 7da8702f1e..2b408f24dc 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/FallbackOpenFileItem.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/FallbackOpenFileItem.cs
@@ -46,7 +46,7 @@ internal sealed partial class FallbackOpenFileItem : FallbackCommandItem, System
             return;
         }
 
-        if (_suppressCallback != null && _suppressCallback(query))
+        if (_suppressCallback is not null && _suppressCallback(query))
         {
             Command = new NoOpCommand();
             Title = string.Empty;
@@ -71,7 +71,7 @@ internal sealed partial class FallbackOpenFileItem : FallbackCommandItem, System
             try
             {
                 var stream = ThumbnailHelper.GetThumbnail(item.FullPath).Result;
-                if (stream != null)
+                if (stream is not null)
                 {
                     var data = new IconData(RandomAccessStreamReference.CreateFromStream(stream));
                     Icon = new IconInfo(data, data);
@@ -92,7 +92,7 @@ internal sealed partial class FallbackOpenFileItem : FallbackCommandItem, System
                 _searchEngine.Query(query, _queryCookie);
                 var results = _searchEngine.FetchItems(0, 20, _queryCookie, out var _);
 
-                if (results.Count == 0 || ((results[0] as IndexerListItem) == null))
+                if (results.Count == 0 || ((results[0] as IndexerListItem) is null))
                 {
                     // Exit 2: We searched for the file, and found nothing. Oh well.
                     // Hide ourselves.
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/DataSourceManager.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/DataSourceManager.cs
index 7b9f9bd45b..1e2119f0ab 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/DataSourceManager.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/DataSourceManager.cs
@@ -16,7 +16,7 @@ internal static class DataSourceManager
 
     public static IDBInitialize GetDataSource()
     {
-        if (_dataSource == null)
+        if (_dataSource is null)
         {
             InitializeDataSource();
         }
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/SearchQuery.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/SearchQuery.cs
index 8fa972f302..6b85834bb8 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/SearchQuery.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/SearchQuery.cs
@@ -12,7 +12,6 @@ using ManagedCsWin32;
 using Microsoft.CmdPal.Ext.Indexer.Indexer.OleDB;
 using Microsoft.CmdPal.Ext.Indexer.Indexer.SystemSearch;
 using Microsoft.CmdPal.Ext.Indexer.Indexer.Utils;
-using static Microsoft.CmdPal.Ext.Indexer.Indexer.Utils.NativeHelpers;
 
 namespace Microsoft.CmdPal.Ext.Indexer.Indexer;
 
@@ -54,14 +53,14 @@ internal sealed partial class SearchQuery : IDisposable
         try
         {
             queryTpTimer = new Timer(QueryTimerCallback, this, Timeout.Infinite, Timeout.Infinite);
-            if (queryTpTimer == null)
+            if (queryTpTimer is null)
             {
                 Logger.LogError("Failed to create query timer");
                 return;
             }
 
             queryCompletedEvent = new EventWaitHandle(false, EventResetMode.ManualReset);
-            if (queryCompletedEvent == null)
+            if (queryCompletedEvent is null)
             {
                 Logger.LogError("Failed to create query completed event");
                 return;
@@ -85,7 +84,7 @@ internal sealed partial class SearchQuery : IDisposable
         // Are we currently doing work? If so, let's cancel
         lock (_lockObject)
         {
-            if (queryTpTimer != null)
+            if (queryTpTimer is not null)
             {
                 queryTpTimer.Change(Timeout.Infinite, Timeout.Infinite);
                 queryTpTimer.Dispose();
@@ -117,7 +116,7 @@ internal sealed partial class SearchQuery : IDisposable
             try
             {
                 // We need to generate a search query string with the search text the user entered above
-                if (currentRowset != null)
+                if (currentRowset is not null)
                 {
                     // We have a previous rowset, this means the user is typing and we should store this
                     // recapture the where ID from this so the next ExecuteSync call will be faster
@@ -146,14 +145,14 @@ internal sealed partial class SearchQuery : IDisposable
         {
             getRow.GetRowFromHROW(null, rowHandle, ref Unsafe.AsRef(in IID.IPropertyStore), out var propertyStore);
 
-            if (propertyStore == null)
+            if (propertyStore is null)
             {
                 Logger.LogError("Failed to get IPropertyStore interface");
                 return false;
             }
 
             var searchResult = SearchResult.Create(propertyStore);
-            if (searchResult == null)
+            if (searchResult is null)
             {
                 Logger.LogError("Failed to create search result");
                 return false;
@@ -171,7 +170,7 @@ internal sealed partial class SearchQuery : IDisposable
 
     public bool FetchRows(int offset, int limit)
     {
-        if (currentRowset == null)
+        if (currentRowset is null)
         {
             Logger.LogError("No rowset to fetch rows from");
             return false;
@@ -241,7 +240,7 @@ internal sealed partial class SearchQuery : IDisposable
     {
         var queryStr = QueryStringBuilder.GeneratePrimingQuery();
         var rowset = ExecuteCommand(queryStr);
-        if (rowset != null)
+        if (rowset is not null)
         {
             reuseRowset = rowset;
             reuseWhereID = GetReuseWhereId(reuseRowset);
@@ -261,7 +260,7 @@ internal sealed partial class SearchQuery : IDisposable
             var guid = typeof(IDBCreateCommand).GUID;
             session.CreateSession(IntPtr.Zero, ref guid, out var ppDBSession);
 
-            if (ppDBSession == null)
+            if (ppDBSession is null)
             {
                 Logger.LogError("CreateSession failed");
                 return null;
@@ -271,7 +270,7 @@ internal sealed partial class SearchQuery : IDisposable
             guid = typeof(ICommandText).GUID;
             createCommand.CreateCommand(IntPtr.Zero, ref guid, out ICommandText commandText);
 
-            if (commandText == null)
+            if (commandText is null)
             {
                 Logger.LogError("Failed to get ICommandText interface");
                 return null;
@@ -342,13 +341,13 @@ internal sealed partial class SearchQuery : IDisposable
     {
         var rowsetInfo = (IRowsetInfo)rowset;
 
-        if (rowsetInfo == null)
+        if (rowsetInfo is null)
         {
             return 0;
         }
 
         var prop = GetPropset(rowsetInfo);
-        if (prop == null)
+        if (prop is null)
         {
             return 0;
         }
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/SearchResult.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/SearchResult.cs
index b44e9ab11b..fa2cf31704 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/SearchResult.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/SearchResult.cs
@@ -26,7 +26,7 @@ internal sealed class SearchResult
         ItemUrl = url;
         IsFolder = isFolder;
 
-        if (LaunchUri == null || LaunchUri.Length == 0)
+        if (LaunchUri is null || LaunchUri.Length == 0)
         {
             // Launch the file with the default app, so use the file path
             LaunchUri = filePath;
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/Utils/QueryStringBuilder.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/Utils/QueryStringBuilder.cs
index 997d364b4d..068ea08750 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/Utils/QueryStringBuilder.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/Utils/QueryStringBuilder.cs
@@ -5,8 +5,6 @@
 using System;
 using System.Globalization;
 using System.Runtime.CompilerServices;
-using System.Runtime.InteropServices;
-using System.Runtime.InteropServices.Marshalling;
 using ManagedCommon;
 using ManagedCsWin32;
 using Microsoft.CmdPal.Ext.Indexer.Indexer.SystemSearch;
@@ -28,7 +26,7 @@ internal sealed partial class QueryStringBuilder
 
     public static string GenerateQuery(string searchText, uint whereId)
     {
-        if (queryHelper == null)
+        if (queryHelper is null)
         {
             ISearchManager searchManager;
 
@@ -43,13 +41,13 @@ internal sealed partial class QueryStringBuilder
             }
 
             ISearchCatalogManager catalogManager = searchManager.GetCatalog(SystemIndex);
-            if (catalogManager == null)
+            if (catalogManager is null)
             {
                 throw new ArgumentException($"Failed to get catalog manager for {SystemIndex}");
             }
 
             queryHelper = catalogManager.GetQueryHelper();
-            if (queryHelper == null)
+            if (queryHelper is null)
             {
                 throw new ArgumentException("Failed to get query helper from catalog manager");
             }
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Pages/ActionsListContextItem.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Pages/ActionsListContextItem.cs
index 0c2823fed5..9f37f94c1b 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Pages/ActionsListContextItem.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Pages/ActionsListContextItem.cs
@@ -44,12 +44,12 @@ internal sealed partial class ActionsListContextItem : CommandContextItem, IDisp
     {
         lock (UpdateMoreCommandsLock)
         {
-            if (actionRuntime == null)
+            if (actionRuntime is null)
             {
                 actionRuntime = ActionRuntimeManager.InstanceAsync.GetAwaiter().GetResult();
             }
 
-            if (actionRuntime == null)
+            if (actionRuntime is null)
             {
                 return;
             }
@@ -62,7 +62,7 @@ internal sealed partial class ActionsListContextItem : CommandContextItem, IDisp
         {
             var extension = System.IO.Path.GetExtension(fullPath).ToLower(CultureInfo.InvariantCulture);
             ActionEntity entity = null;
-            if (extension != null)
+            if (extension is not null)
             {
                 if (extension == ".jpg" || extension == ".jpeg" || extension == ".png")
                 {
@@ -74,7 +74,7 @@ internal sealed partial class ActionsListContextItem : CommandContextItem, IDisp
                 }
             }
 
-            if (entity == null)
+            if (entity is null)
             {
                 entity = actionRuntime.EntityFactory.CreateFileEntity(fullPath);
             }
@@ -100,7 +100,7 @@ internal sealed partial class ActionsListContextItem : CommandContextItem, IDisp
     {
         lock (UpdateMoreCommandsLock)
         {
-            if (actionRuntime != null)
+            if (actionRuntime is not null)
             {
                 actionRuntime.ActionCatalog.Changed -= ActionCatalog_Changed;
             }
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Pages/DirectoryExplorePage.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Pages/DirectoryExplorePage.cs
index 9bb7820a07..3bdbe1b0ce 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Pages/DirectoryExplorePage.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Pages/DirectoryExplorePage.cs
@@ -35,14 +35,14 @@ public sealed partial class DirectoryExplorePage : DynamicListPage
 
     public override void UpdateSearchText(string oldSearch, string newSearch)
     {
-        if (_directoryContents == null)
+        if (_directoryContents is null)
         {
             return;
         }
 
         if (string.IsNullOrEmpty(newSearch))
         {
-            if (_filteredContents != null)
+            if (_filteredContents is not null)
             {
                 _filteredContents = null;
                 RaiseItemsChanged(-1);
@@ -58,7 +58,7 @@ public sealed partial class DirectoryExplorePage : DynamicListPage
             newSearch,
             (s, i) => ListHelpers.ScoreListItem(s, i));
 
-        if (_filteredContents != null)
+        if (_filteredContents is not null)
         {
             lock (_filteredContents)
             {
@@ -75,12 +75,12 @@ public sealed partial class DirectoryExplorePage : DynamicListPage
 
     public override IListItem[] GetItems()
     {
-        if (_filteredContents != null)
+        if (_filteredContents is not null)
         {
             return _filteredContents.ToArray();
         }
 
-        if (_directoryContents != null)
+        if (_directoryContents is not null)
         {
             return _directoryContents.ToArray();
         }
@@ -120,7 +120,7 @@ public sealed partial class DirectoryExplorePage : DynamicListPage
                 try
                 {
                     var stream = ThumbnailHelper.GetThumbnail(item.FilePath).Result;
-                    if (stream != null)
+                    if (stream is not null)
                     {
                         var data = new IconData(RandomAccessStreamReference.CreateFromStream(stream));
                         icon = new IconInfo(data, data);
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Pages/DirectoryPage.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Pages/DirectoryPage.cs
index a6f989c41e..91e78d87fd 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Pages/DirectoryPage.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Pages/DirectoryPage.cs
@@ -31,7 +31,7 @@ public sealed partial class DirectoryPage : ListPage
 
     public override IListItem[] GetItems()
     {
-        if (_directoryContents != null)
+        if (_directoryContents is not null)
         {
             return _directoryContents.ToArray();
         }
@@ -86,7 +86,7 @@ public sealed partial class DirectoryPage : ListPage
                 try
                 {
                     var stream = ThumbnailHelper.GetThumbnail(item.FilePath).Result;
-                    if (stream != null)
+                    if (stream is not null)
                     {
                         var data = new IconData(RandomAccessStreamReference.CreateFromStream(stream));
                         icon = new IconInfo(data, data);
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/SearchEngine.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/SearchEngine.cs
index 4d77de679a..eb1ca563b4 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/SearchEngine.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/SearchEngine.cs
@@ -42,7 +42,7 @@ public sealed partial class SearchEngine : IDisposable
     {
         hasMore = false;
         var results = new List<IListItem>();
-        if (_searchQuery != null)
+        if (_searchQuery is not null)
         {
             var cookie = _searchQuery.Cookie;
             if (cookie == queryCookie)
@@ -59,7 +59,7 @@ public sealed partial class SearchEngine : IDisposable
                     try
                     {
                         var stream = ThumbnailHelper.GetThumbnail(result.LaunchUri).Result;
-                        if (stream != null)
+                        if (stream is not null)
                         {
                             var data = new IconData(RandomAccessStreamReference.CreateFromStream(stream));
                             icon = new IconInfo(data, data);
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Registry/Helpers/RegistryHelper.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Registry/Helpers/RegistryHelper.cs
index 9cd30b2bea..b64894baaf 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Registry/Helpers/RegistryHelper.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Registry/Helpers/RegistryHelper.cs
@@ -7,7 +7,6 @@ using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.Diagnostics;
 using System.Linq;
-using ManagedCommon;
 using Microsoft.CmdPal.Ext.Registry.Classes;
 using Microsoft.CmdPal.Ext.Registry.Constants;
 using Microsoft.CmdPal.Ext.Registry.Properties;
@@ -118,7 +117,7 @@ internal static class RegistryHelper
                 subKey = result.First().Key;
             }
 
-            if (result.Count > 1 || subKey == null)
+            if (result.Count > 1 || subKey is null)
             {
                 break;
             }
@@ -183,7 +182,7 @@ internal static class RegistryHelper
                 if (string.Equals(subKey, searchSubKey, StringComparison.OrdinalIgnoreCase))
                 {
                     var key = parentKey.OpenSubKey(subKey, RegistryKeyPermissionCheck.ReadSubTree);
-                    if (key != null)
+                    if (key is not null)
                     {
                         list.Add(new RegistryEntry(key));
                     }
@@ -194,7 +193,7 @@ internal static class RegistryHelper
                 try
                 {
                     var key = parentKey.OpenSubKey(subKey, RegistryKeyPermissionCheck.ReadSubTree);
-                    if (key != null)
+                    if (key is not null)
                     {
                         list.Add(new RegistryEntry(key));
                     }
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Registry/Helpers/ResultHelper.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Registry/Helpers/ResultHelper.cs
index c05af5f594..0ac3159531 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Registry/Helpers/ResultHelper.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Registry/Helpers/ResultHelper.cs
@@ -88,7 +88,7 @@ internal static class ResultHelper
                 foreach (var valueName in valueNames)
                 {
                     var value = key.GetValue(valueName);
-                    if (value != null)
+                    if (value is not null)
                     {
                         valueList.Add(KeyValuePair.Create(valueName, value));
                     }
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Registry/Helpers/ValueHelper.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Registry/Helpers/ValueHelper.cs
index e0e6eaf951..f25bc56064 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Registry/Helpers/ValueHelper.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Registry/Helpers/ValueHelper.cs
@@ -26,7 +26,7 @@ internal static class ValueHelper
     {
         var unformattedValue = key.GetValue(valueName);
 
-        if (unformattedValue == null)
+        if (unformattedValue is null)
         {
             throw new InvalidOperationException($"Cannot proceed when {nameof(unformattedValue)} is null.");
         }
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Shell/Commands/ExecuteItem.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Shell/Commands/ExecuteItem.cs
index 5058b386b3..4ca772dc1e 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Shell/Commands/ExecuteItem.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Shell/Commands/ExecuteItem.cs
@@ -46,7 +46,7 @@ internal sealed partial class ExecuteItem : InvokableCommand
 
     private void Execute(Func<ProcessStartInfo, Process?> startProcess, ProcessStartInfo info)
     {
-        if (startProcess == null)
+        if (startProcess is null)
         {
             return;
         }
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Shell/Helpers/ShellListPageHelpers.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Shell/Helpers/ShellListPageHelpers.cs
index acf739cdbf..6a545c7225 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Shell/Helpers/ShellListPageHelpers.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Shell/Helpers/ShellListPageHelpers.cs
@@ -126,7 +126,7 @@ public class ShellListPageHelpers
             return null;
         }
 
-        if (li != null)
+        if (li is not null)
         {
             li.TextToSuggest = searchText;
         }
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Shell/Pages/RunExeItem.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Shell/Pages/RunExeItem.cs
index ea98f2fe47..a8d578939e 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Shell/Pages/RunExeItem.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Shell/Pages/RunExeItem.cs
@@ -78,7 +78,7 @@ internal sealed partial class RunExeItem : ListItem
         try
         {
             var stream = await ThumbnailHelper.GetThumbnail(FullExePath);
-            if (stream != null)
+            if (stream is not null)
             {
                 var data = new IconData(RandomAccessStreamReference.CreateFromStream(stream));
                 icon = new IconInfo(data, data);
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Shell/Pages/ShellListPage.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Shell/Pages/ShellListPage.cs
index 8ecfe091c1..4b99477d2a 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Shell/Pages/ShellListPage.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Shell/Pages/ShellListPage.cs
@@ -245,14 +245,14 @@ internal sealed partial class ShellListPage : DynamicListPage, IDisposable
         var histItemsNotInSearch =
             _historyItems
                 .Where(kv => !kv.Key.Equals(newSearch, StringComparison.OrdinalIgnoreCase));
-        if (_exeItem != null)
+        if (_exeItem is not null)
         {
             // If we have an exe item, we want to remove it from the history items
             histItemsNotInSearch = histItemsNotInSearch
                 .Where(kv => !kv.Value.Title.Equals(_exeItem.Title, StringComparison.OrdinalIgnoreCase));
         }
 
-        if (_uriItem != null)
+        if (_uriItem is not null)
         {
             // If we have an uri item, we want to remove it from the history items
             histItemsNotInSearch = histItemsNotInSearch
@@ -307,8 +307,8 @@ internal sealed partial class ShellListPage : DynamicListPage, IDisposable
         }
 
         var filteredTopLevel = ListHelpers.FilterList(_topLevelItems, SearchText);
-        List<ListItem> uriItems = _uriItem != null ? [_uriItem] : [];
-        List<ListItem> exeItems = _exeItem != null ? [_exeItem] : [];
+        List<ListItem> uriItems = _uriItem is not null ? [_uriItem] : [];
+        List<ListItem> exeItems = _exeItem is not null ? [_exeItem] : [];
 
         return
             exeItems
@@ -459,7 +459,7 @@ internal sealed partial class ShellListPage : DynamicListPage, IDisposable
         var hist = _historyService.GetRunHistory();
         var histItems = hist
             .Select(h => (h, ShellListPageHelpers.ListItemForCommandString(h, AddToHistory)))
-            .Where(tuple => tuple.Item2 != null)
+            .Where(tuple => tuple.Item2 is not null)
             .Select(tuple => (tuple.h, tuple.Item2!))
             .ToList();
         _historyItems.Clear();
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Shell/PathListItem.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Shell/PathListItem.cs
index 2e1dd38349..18f37818e6 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Shell/PathListItem.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Shell/PathListItem.cs
@@ -72,7 +72,7 @@ internal sealed partial class PathListItem : ListItem
         _icon = new Lazy<IconInfo>(() =>
         {
             var iconStream = ThumbnailHelper.GetThumbnail(path).Result;
-            var icon = iconStream != null ? IconInfo.FromStream(iconStream) :
+            var icon = iconStream is not null ? IconInfo.FromStream(iconStream) :
              _isDirectory ? Icons.FolderIcon : Icons.RunV2Icon;
             return icon;
         });
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.System/FallbackSystemCommandItem.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.System/FallbackSystemCommandItem.cs
index 6cb6e7a3ec..6914c00626 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.System/FallbackSystemCommandItem.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.System/FallbackSystemCommandItem.cs
@@ -57,7 +57,7 @@ internal sealed partial class FallbackSystemCommandItem : FallbackCommandItem
             }
         }
 
-        if (result == null)
+        if (result is null)
         {
             Command = null;
             Title = string.Empty;
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.System/Helpers/NetworkConnectionProperties.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.System/Helpers/NetworkConnectionProperties.cs
index 486eeaa8b5..69e5c2ac78 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.System/Helpers/NetworkConnectionProperties.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.System/Helpers/NetworkConnectionProperties.cs
@@ -155,7 +155,7 @@ internal sealed class NetworkConnectionProperties
     internal static List<NetworkConnectionProperties> GetList()
     {
         var interfaces = NetworkInterface.GetAllNetworkInterfaces()
-                                         .Where(x => x.NetworkInterfaceType != NetworkInterfaceType.Loopback && x.GetPhysicalAddress() != null)
+                                         .Where(x => x.NetworkInterfaceType != NetworkInterfaceType.Loopback && x.GetPhysicalAddress() is not null)
                                          .Select(i => new NetworkConnectionProperties(i))
                                          .OrderByDescending(i => i.IPv4) // list IPv4 first
                                          .ThenBy(i => i.IPv6Primary) // then IPv6
@@ -195,9 +195,9 @@ internal sealed class NetworkConnectionProperties
             CreateIpInfoForDetailsText($"**{Resources.Microsoft_plugin_sys_Ip6Site}:**\n\n* ", IPv6SiteLocal) +
             CreateIpInfoForDetailsText($"**{Resources.Microsoft_plugin_sys_Ip6Unique}:**\n\n* ", IPv6UniqueLocal) +
             CreateIpInfoForDetailsText($"**{Resources.Microsoft_plugin_sys_Gateways}:**\n\n* ", Gateways) +
-            CreateIpInfoForDetailsText($"**{Resources.Microsoft_plugin_sys_Dhcp}:**\n\n* ", DhcpServers == null ? string.Empty : DhcpServers) +
-            CreateIpInfoForDetailsText($"**{Resources.Microsoft_plugin_sys_Dns}:**\n\n* ", DnsServers == null ? string.Empty : DnsServers) +
-            CreateIpInfoForDetailsText($"**{Resources.Microsoft_plugin_sys_Wins}:**\n\n* ", WinsServers == null ? string.Empty : WinsServers) +
+            CreateIpInfoForDetailsText($"**{Resources.Microsoft_plugin_sys_Dhcp}:**\n\n* ", DhcpServers is null ? string.Empty : DhcpServers) +
+            CreateIpInfoForDetailsText($"**{Resources.Microsoft_plugin_sys_Dns}:**\n\n* ", DnsServers is null ? string.Empty : DnsServers) +
+            CreateIpInfoForDetailsText($"**{Resources.Microsoft_plugin_sys_Wins}:**\n\n* ", WinsServers is null ? string.Empty : WinsServers) +
             $"\n\n**{Resources.Microsoft_plugin_sys_AdapterName}:** {Adapter}" +
             $"\n\n**{Resources.Microsoft_plugin_sys_PhysicalAddress}:** {PhysicalAddress}" +
             $"\n\n**{Resources.Microsoft_plugin_sys_Speed}:** {GetFormattedSpeedValue(Speed)}";
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.TimeDate/FallbackTimeDateItem.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.TimeDate/FallbackTimeDateItem.cs
index cc757bcd88..57749d3b8d 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.TimeDate/FallbackTimeDateItem.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.TimeDate/FallbackTimeDateItem.cs
@@ -4,11 +4,9 @@
 
 using System;
 using System.Collections.Generic;
-using System.Drawing;
 using System.Globalization;
 using System.Linq;
 using Microsoft.CmdPal.Ext.TimeDate.Helpers;
-using Microsoft.CommandPalette.Extensions;
 using Microsoft.CommandPalette.Extensions.Toolkit;
 
 namespace Microsoft.CmdPal.Ext.TimeDate;
@@ -66,7 +64,7 @@ internal sealed partial class FallbackTimeDateItem : FallbackCommandItem
             }
         }
 
-        if (result != null)
+        if (result is not null)
         {
             Title = result.Title;
             Subtitle = result.Subtitle;
@@ -90,7 +88,7 @@ internal sealed partial class FallbackTimeDateItem : FallbackCommandItem
 
         foreach (var option in _validOptions)
         {
-            if (option == null)
+            if (option is null)
             {
                 continue;
             }
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.TimeDate/Helpers/AvailableResultsList.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.TimeDate/Helpers/AvailableResultsList.cs
index 0966c0d3df..5666ff6fa3 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.TimeDate/Helpers/AvailableResultsList.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.TimeDate/Helpers/AvailableResultsList.cs
@@ -29,7 +29,7 @@ internal static class AvailableResultsList
 
         var timeExtended = timeLongFormat ?? settings.TimeWithSecond;
         var dateExtended = dateLongFormat ?? settings.DateWithWeekday;
-        var isSystemDateTime = timestamp == null;
+        var isSystemDateTime = timestamp is null;
         var dateTimeNow = timestamp ?? DateTime.Now;
         var dateTimeNowUtc = dateTimeNow.ToUniversalTime();
         var firstWeekRule = firstWeekOfYear ?? TimeAndDateHelper.GetCalendarWeekRule(settings.FirstWeekOfYear);
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.TimeDate/Helpers/SettingsManager.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.TimeDate/Helpers/SettingsManager.cs
index 727c5258aa..4bd8bf4d7c 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.TimeDate/Helpers/SettingsManager.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.TimeDate/Helpers/SettingsManager.cs
@@ -103,7 +103,7 @@ public class SettingsManager : JsonSettingsManager, ISettingsInterface
     {
         get
         {
-            if (_firstWeekOfYear.Value == null || string.IsNullOrEmpty(_firstWeekOfYear.Value))
+            if (_firstWeekOfYear.Value is null || string.IsNullOrEmpty(_firstWeekOfYear.Value))
             {
                 return -1;
             }
@@ -123,7 +123,7 @@ public class SettingsManager : JsonSettingsManager, ISettingsInterface
     {
         get
         {
-            if (_firstDayOfWeek.Value == null || string.IsNullOrEmpty(_firstDayOfWeek.Value))
+            if (_firstDayOfWeek.Value is null || string.IsNullOrEmpty(_firstDayOfWeek.Value))
             {
                 return -1;
             }
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WebSearch/Helpers/DefaultBrowserInfo.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WebSearch/Helpers/DefaultBrowserInfo.cs
index 87b87c7ff5..f6b82ecfbb 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WebSearch/Helpers/DefaultBrowserInfo.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WebSearch/Helpers/DefaultBrowserInfo.cs
@@ -3,7 +3,6 @@
 // See the LICENSE file in the project root for more information.
 
 using System;
-using System.Runtime.InteropServices;
 using System.Text;
 using System.Threading;
 using ManagedCommon;
@@ -87,7 +86,7 @@ public static class DefaultBrowserInfo
                 var appName = GetRegistryValue($@"HKEY_CLASSES_ROOT\{progId}\Application", "ApplicationName")
                     ?? GetRegistryValue($@"HKEY_CLASSES_ROOT\{progId}", "FriendlyTypeName");
 
-                if (appName != null)
+                if (appName is not null)
                 {
                     // Handle indirect strings:
                     if (appName.StartsWith('@'))
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WebSearch/Helpers/SettingsManager.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WebSearch/Helpers/SettingsManager.cs
index 8a39bca35b..300cb105fb 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WebSearch/Helpers/SettingsManager.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WebSearch/Helpers/SettingsManager.cs
@@ -67,7 +67,7 @@ public class SettingsManager : JsonSettingsManager
 
     public void SaveHistory(HistoryItem historyItem)
     {
-        if (historyItem == null)
+        if (historyItem is null)
         {
             return;
         }
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WebSearch/Pages/WebSearchListPage.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WebSearch/Pages/WebSearchListPage.cs
index c96efe24c7..faf65cd973 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WebSearch/Pages/WebSearchListPage.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WebSearch/Pages/WebSearchListPage.cs
@@ -34,7 +34,7 @@ internal sealed partial class WebSearchListPage : DynamicListPage
         Id = "com.microsoft.cmdpal.websearch";
         _settingsManager = settingsManager;
         _historyItems = _settingsManager.ShowHistory != Resources.history_none ? _settingsManager.LoadHistory() : null;
-        if (_historyItems != null)
+        if (_historyItems is not null)
         {
             _allItems.AddRange(_historyItems);
         }
@@ -55,7 +55,7 @@ internal sealed partial class WebSearchListPage : DynamicListPage
         ArgumentNullException.ThrowIfNull(query);
         IEnumerable<ListItem>? filteredHistoryItems = null;
 
-        if (_historyItems != null)
+        if (_historyItems is not null)
         {
             filteredHistoryItems = _settingsManager.ShowHistory != Resources.history_none ? ListHelpers.FilterList(_historyItems, query).OfType<ListItem>() : null;
         }
@@ -74,7 +74,7 @@ internal sealed partial class WebSearchListPage : DynamicListPage
             results.Add(result);
         }
 
-        if (filteredHistoryItems != null)
+        if (filteredHistoryItems is not null)
         {
             results.AddRange(filteredHistoryItems);
         }
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WinGet/Pages/InstallPackageCommand.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WinGet/Pages/InstallPackageCommand.cs
index c4fd7b7a4c..d2c1ea7283 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WinGet/Pages/InstallPackageCommand.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WinGet/Pages/InstallPackageCommand.cs
@@ -5,7 +5,6 @@
 using System;
 using System.Globalization;
 using System.Text;
-using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.CommandPalette.Extensions;
 using Microsoft.CommandPalette.Extensions.Toolkit;
@@ -79,7 +78,7 @@ public partial class InstallPackageCommand : InvokableCommand
     {
         // TODO: LOCK in here, so this can only be invoked once until the
         // install / uninstall is done. Just use like, an atomic
-        if (_installTask != null)
+        if (_installTask is not null)
         {
             return CommandResult.KeepOpen();
         }
@@ -143,7 +142,7 @@ public partial class InstallPackageCommand : InvokableCommand
             {
                 await Task.Delay(2500).ConfigureAwait(false);
 
-                if (_installTask == null)
+                if (_installTask is null)
                 {
                     WinGetExtensionHost.Instance.HideStatus(_installBanner);
                 }
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WinGet/Pages/InstallPackageListItem.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WinGet/Pages/InstallPackageListItem.cs
index dd51e297a9..e2a3d2e4b4 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WinGet/Pages/InstallPackageListItem.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WinGet/Pages/InstallPackageListItem.cs
@@ -34,7 +34,7 @@ public partial class InstallPackageListItem : ListItem
 
         var version = _package.DefaultInstallVersion ?? _package.InstalledVersion;
         var versionTagText = "Unknown";
-        if (version != null)
+        if (version is not null)
         {
             versionTagText = version.Version == "Unknown" && version.PackageCatalog.Info.Id == "StoreEdgeFD" ? "msstore" : version.Version;
         }
@@ -60,11 +60,11 @@ public partial class InstallPackageListItem : ListItem
             Logger.LogWarning($"{ex.ErrorCode}");
         }
 
-        if (metadata != null)
+        if (metadata is not null)
         {
             if (metadata.Tags.Where(t => t.Equals(WinGetExtensionPage.ExtensionsTag, StringComparison.OrdinalIgnoreCase)).Any())
             {
-                if (_installCommand != null)
+                if (_installCommand is not null)
                 {
                     _installCommand.SkipDependencies = true;
                 }
@@ -172,7 +172,7 @@ public partial class InstallPackageListItem : ListItem
             return;
         }
 
-        var isInstalled = _package.InstalledVersion != null;
+        var isInstalled = _package.InstalledVersion is not null;
 
         var installedState = isInstalled ?
             (_package.IsUpdateAvailable ?
@@ -193,11 +193,11 @@ public partial class InstallPackageListItem : ListItem
                 Icon = Icons.DeleteIcon,
             };
 
-            if (WinGetStatics.AppSearchCallback != null)
+            if (WinGetStatics.AppSearchCallback is not null)
             {
                 var callback = WinGetStatics.AppSearchCallback;
-                var installedApp = callback(_package.DefaultInstallVersion == null ? _package.Name : _package.DefaultInstallVersion.DisplayName);
-                if (installedApp != null)
+                var installedApp = callback(_package.DefaultInstallVersion is null ? _package.Name : _package.DefaultInstallVersion.DisplayName);
+                if (installedApp is not null)
                 {
                     this.Command = installedApp.Command;
                     contextMenu = [.. installedApp.MoreCommands];
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WinGet/Pages/WinGetExtensionPage.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WinGet/Pages/WinGetExtensionPage.cs
index 1ca113d55c..c348d209d4 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WinGet/Pages/WinGetExtensionPage.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WinGet/Pages/WinGetExtensionPage.cs
@@ -53,7 +53,7 @@ internal sealed partial class WinGetExtensionPage : DynamicListPage, IDisposable
         {
             // emptySearchForTag ===
             // we don't have results yet, we haven't typed anything, and we're searching for a tag
-            var emptySearchForTag = _results == null &&
+            var emptySearchForTag = _results is null &&
                 string.IsNullOrEmpty(SearchText) &&
                 HasTag;
 
@@ -64,7 +64,7 @@ internal sealed partial class WinGetExtensionPage : DynamicListPage, IDisposable
                 return items;
             }
 
-            if (_results != null && _results.Any())
+            if (_results is not null && _results.Any())
             {
                 ListItem[] results = _results.Select(PackageToListItem).ToArray();
                 IsLoading = false;
@@ -100,7 +100,7 @@ internal sealed partial class WinGetExtensionPage : DynamicListPage, IDisposable
     private void DoUpdateSearchText(string newSearch)
     {
         // Cancel any ongoing search
-        if (_cancellationTokenSource != null)
+        if (_cancellationTokenSource is not null)
         {
             Logger.LogDebug("Cancelling old search", memberName: nameof(DoUpdateSearchText));
             _cancellationTokenSource.Cancel();
@@ -221,7 +221,7 @@ internal sealed partial class WinGetExtensionPage : DynamicListPage, IDisposable
         // WinGetStatics static ctor when we were created.
         PackageCatalog catalog = await catalogTask.Value;
 
-        if (catalog == null)
+        if (catalog is null)
         {
             // This error should have already been displayed by WinGetStatics
             return [];
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WindowWalker/Commands/SwitchToWindowCommand.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WindowWalker/Commands/SwitchToWindowCommand.cs
index 0bfc1e0396..695eaa2c83 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WindowWalker/Commands/SwitchToWindowCommand.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WindowWalker/Commands/SwitchToWindowCommand.cs
@@ -18,10 +18,10 @@ internal sealed partial class SwitchToWindowCommand : InvokableCommand
     {
         Name = Resources.switch_to_command_title;
         _window = window;
-        if (_window != null)
+        if (_window is not null)
         {
             var p = Process.GetProcessById((int)_window.Process.ProcessID);
-            if (p != null)
+            if (p is not null)
             {
                 try
                 {
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WindowWalker/Components/ResultHelper.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WindowWalker/Components/ResultHelper.cs
index fd7cf9149c..8739d88a2f 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WindowWalker/Components/ResultHelper.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WindowWalker/Components/ResultHelper.cs
@@ -23,7 +23,7 @@ internal static class ResultHelper
     /// <returns>List of results</returns>
     internal static List<WindowWalkerListItem> GetResultList(List<SearchResult> searchControllerResults, bool isKeywordSearch)
     {
-        if (searchControllerResults == null || searchControllerResults.Count == 0)
+        if (searchControllerResults is null || searchControllerResults.Count == 0)
         {
             return [];
         }
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WindowWalker/Helpers/VirtualDesktopHelper.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WindowWalker/Helpers/VirtualDesktopHelper.cs
index 41e6f1fc7f..131ec7ae82 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WindowWalker/Helpers/VirtualDesktopHelper.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WindowWalker/Helpers/VirtualDesktopHelper.cs
@@ -83,7 +83,7 @@ public class VirtualDesktopHelper
     /// <summary>
     /// Gets a value indicating whether the Virtual Desktop Manager is initialized successfully
     /// </summary>
-    public bool VirtualDesktopManagerInitialized => _virtualDesktopManager != null;
+    public bool VirtualDesktopManagerInitialized => _virtualDesktopManager is not null;
 
     /// <summary>
     /// Method to update the list of Virtual Desktops from Registry
@@ -98,10 +98,10 @@ public class VirtualDesktopHelper
 
         // List of all desktops
         using RegistryKey? virtualDesktopKey = Registry.CurrentUser.OpenSubKey(registryExplorerVirtualDesktops, false);
-        if (virtualDesktopKey != null)
+        if (virtualDesktopKey is not null)
         {
             var allDeskValue = (byte[]?)virtualDesktopKey.GetValue("VirtualDesktopIDs", null) ?? Array.Empty<byte>();
-            if (allDeskValue != null)
+            if (allDeskValue is not null)
             {
                 // We clear only, if we can read from registry. Otherwise, we keep the existing values.
                 _availableDesktops.Clear();
@@ -124,10 +124,10 @@ public class VirtualDesktopHelper
         // Guid for current desktop
         var virtualDesktopsKeyName = _isWindowsEleven ? registryExplorerVirtualDesktops : registrySessionVirtualDesktops;
         using RegistryKey? virtualDesktopsKey = Registry.CurrentUser.OpenSubKey(virtualDesktopsKeyName, false);
-        if (virtualDesktopsKey != null)
+        if (virtualDesktopsKey is not null)
         {
             var currentVirtualDesktopValue = virtualDesktopsKey.GetValue("CurrentVirtualDesktop", null);
-            if (currentVirtualDesktopValue != null)
+            if (currentVirtualDesktopValue is not null)
             {
                 _currentDesktop = new Guid((byte[])currentVirtualDesktopValue);
             }
@@ -268,7 +268,7 @@ public class VirtualDesktopHelper
         using RegistryKey? deskSubKey = Registry.CurrentUser.OpenSubKey(registryPath, false);
         var desktopName = deskSubKey?.GetValue("Name");
 
-        return (desktopName != null) ? (string)desktopName : defaultName;
+        return (desktopName is not null) ? (string)desktopName : defaultName;
     }
 
     /// <summary>
@@ -313,7 +313,7 @@ public class VirtualDesktopHelper
     /// <returns>HResult of the called method as integer.</returns>
     public int GetWindowDesktopId(IntPtr hWindow, out Guid desktopId)
     {
-        if (_virtualDesktopManager == null)
+        if (_virtualDesktopManager is null)
         {
             ExtensionHost.LogMessage(new LogMessage() { Message = "VirtualDesktopHelper.GetWindowDesktopId() failed: The instance of <IVirtualDesktopHelper> isn't available." });
             desktopId = Guid.Empty;
@@ -330,7 +330,7 @@ public class VirtualDesktopHelper
     /// <returns>An instance of <see cref="VDesktop"/> for the desktop where the window is assigned to, or an empty instance of <see cref="VDesktop"/> on failure.</returns>
     public VDesktop GetWindowDesktop(IntPtr hWindow)
     {
-        if (_virtualDesktopManager == null)
+        if (_virtualDesktopManager is null)
         {
             ExtensionHost.LogMessage(new LogMessage() { Message = "VirtualDesktopHelper.GetWindowDesktop() failed: The instance of <IVirtualDesktopHelper> isn't available." });
             return CreateVDesktopInstance(Guid.Empty);
@@ -348,7 +348,7 @@ public class VirtualDesktopHelper
     /// <returns>Type of <see cref="VirtualDesktopAssignmentType"/>.</returns>
     public VirtualDesktopAssignmentType GetWindowDesktopAssignmentType(IntPtr hWindow, Guid? desktop = null)
     {
-        if (_virtualDesktopManager == null)
+        if (_virtualDesktopManager is null)
         {
             ExtensionHost.LogMessage(new LogMessage() { Message = "VirtualDesktopHelper.GetWindowDesktopAssignmentType() failed: The instance of <IVirtualDesktopHelper> isn't available." });
             return VirtualDesktopAssignmentType.Unknown;
@@ -415,7 +415,7 @@ public class VirtualDesktopHelper
     /// <returns><see langword="True"/> on success and <see langword="false"/> on failure.</returns>
     public bool MoveWindowToDesktop(IntPtr hWindow, ref Guid desktopId)
     {
-        if (_virtualDesktopManager == null)
+        if (_virtualDesktopManager is null)
         {
             ExtensionHost.LogMessage(new LogMessage() { Message = "VirtualDesktopHelper.MoveWindowToDesktop() failed: The instance of <IVirtualDesktopHelper> isn't available." });
             return false;
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WindowsServices/Helpers/ServiceHelper.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WindowsServices/Helpers/ServiceHelper.cs
index ed67163ca5..6e874b1581 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WindowsServices/Helpers/ServiceHelper.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WindowsServices/Helpers/ServiceHelper.cs
@@ -47,7 +47,7 @@ public static class ServiceHelper
         var result = serviceList.Select(s =>
         {
             var serviceResult = ServiceResult.CreateServiceController(s);
-            if (serviceResult == null)
+            if (serviceResult is null)
             {
                 return null;
             }
@@ -98,7 +98,7 @@ public static class ServiceHelper
                 // ToolTipData = new ToolTipData(serviceResult.DisplayName, serviceResult.ServiceName),
                 // IcoPath = icoPath,
             };
-        }).Where(s => s != null);
+        }).Where(s => s is not null);
 
         return result;
     }
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WindowsSettings/Helpers/UnsupportedSettingsHelper.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WindowsSettings/Helpers/UnsupportedSettingsHelper.cs
index 9ad75ad561..c53844a005 100644
--- a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WindowsSettings/Helpers/UnsupportedSettingsHelper.cs
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.WindowsSettings/Helpers/UnsupportedSettingsHelper.cs
@@ -49,8 +49,8 @@ internal static class UnsupportedSettingsHelper
             : currentBuildNumber;
 
         var filteredSettingsList = windowsSettings.Settings.Where(found
-            => (found.DeprecatedInBuild == null || currentWindowsBuild < found.DeprecatedInBuild)
-            && (found.IntroducedInBuild == null || currentWindowsBuild >= found.IntroducedInBuild));
+            => (found.DeprecatedInBuild is null || currentWindowsBuild < found.DeprecatedInBuild)
+            && (found.IntroducedInBuild is null || currentWindowsBuild >= found.IntroducedInBuild));
 
         filteredSettingsList = filteredSettingsList.OrderBy(found => found.Name);
 
diff --git a/src/modules/cmdpal/ext/SamplePagesExtension/Pages/SampleContentPage.cs b/src/modules/cmdpal/ext/SamplePagesExtension/Pages/SampleContentPage.cs
index 1e5d3f6c5f..3d5b49f61d 100644
--- a/src/modules/cmdpal/ext/SamplePagesExtension/Pages/SampleContentPage.cs
+++ b/src/modules/cmdpal/ext/SamplePagesExtension/Pages/SampleContentPage.cs
@@ -309,7 +309,7 @@ internal sealed partial class SampleContentForm : FormContent
     public override CommandResult SubmitForm(string payload)
     {
         var formInput = JsonNode.Parse(payload)?.AsObject();
-        if (formInput == null)
+        if (formInput is null)
         {
             return CommandResult.GoHome();
         }
diff --git a/src/modules/cmdpal/ext/SamplePagesExtension/SampleUpdatingItemsPage.cs b/src/modules/cmdpal/ext/SamplePagesExtension/SampleUpdatingItemsPage.cs
index 4b94a22ead..63bf2a5a6f 100644
--- a/src/modules/cmdpal/ext/SamplePagesExtension/SampleUpdatingItemsPage.cs
+++ b/src/modules/cmdpal/ext/SamplePagesExtension/SampleUpdatingItemsPage.cs
@@ -24,7 +24,7 @@ public partial class SampleUpdatingItemsPage : ListPage
 
     public override IListItem[] GetItems()
     {
-        if (timer == null)
+        if (timer is null)
         {
             timer = new Timer(500);
             timer.Elapsed += (object source, ElapsedEventArgs e) =>
diff --git a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/AnonymousCommand.cs b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/AnonymousCommand.cs
index c47fe5334b..4c6450706f 100644
--- a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/AnonymousCommand.cs
+++ b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/AnonymousCommand.cs
@@ -18,7 +18,7 @@ public sealed partial class AnonymousCommand : InvokableCommand
 
     public override ICommandResult Invoke()
     {
-        if (_action != null)
+        if (_action is not null)
         {
             _action();
         }
diff --git a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/ChoiceSetSetting.cs b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/ChoiceSetSetting.cs
index b38a1f305d..51beb0b5e7 100644
--- a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/ChoiceSetSetting.cs
+++ b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/ChoiceSetSetting.cs
@@ -65,7 +65,7 @@ public sealed class ChoiceSetSetting : Setting<string>
     public override void Update(JsonObject payload)
     {
         // If the key doesn't exist in the payload, don't do anything
-        if (payload[Key] != null)
+        if (payload[Key] is not null)
         {
             Value = payload[Key]?.GetValue<string>();
         }
diff --git a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/ClipboardHelper.cs b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/ClipboardHelper.cs
index ca9e397f45..b2a8e65bc6 100644
--- a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/ClipboardHelper.cs
+++ b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/ClipboardHelper.cs
@@ -2,10 +2,7 @@
 // The Microsoft Corporation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using System;
-using System.Diagnostics;
 using System.Runtime.InteropServices;
-using System.Threading;
 
 namespace Microsoft.CommandPalette.Extensions.Toolkit;
 
@@ -293,7 +290,7 @@ public static partial class ClipboardHelper
         thread.Start();
         thread.Join();
 
-        if (exception != null)
+        if (exception is not null)
         {
             throw exception;
         }
diff --git a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/CommandContextItem.cs b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/CommandContextItem.cs
index 92dfc714bf..467953381d 100644
--- a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/CommandContextItem.cs
+++ b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/CommandContextItem.cs
@@ -28,7 +28,7 @@ public partial class CommandContextItem : CommandItem, ICommandContextItem
             c.Name = name;
         }
 
-        if (result != null)
+        if (result is not null)
         {
             c.Result = result;
         }
diff --git a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/CommandItem.cs b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/CommandItem.cs
index 153c4cda4f..b1a0917260 100644
--- a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/CommandItem.cs
+++ b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/CommandItem.cs
@@ -48,7 +48,7 @@ public partial class CommandItem : BaseObservable, ICommandItem
         get => _command;
         set
         {
-            if (_commandListener != null)
+            if (_commandListener is not null)
             {
                 _commandListener.Detach();
                 _commandListener = null;
@@ -56,7 +56,7 @@ public partial class CommandItem : BaseObservable, ICommandItem
 
             _command = value;
 
-            if (value != null)
+            if (value is not null)
             {
                 _commandListener = new(this, OnCommandPropertyChanged, listener => value.PropChanged -= listener.OnEvent);
                 value.PropChanged += _commandListener.OnEvent;
@@ -123,7 +123,7 @@ public partial class CommandItem : BaseObservable, ICommandItem
             c.Name = name;
         }
 
-        if (result != null)
+        if (result is not null)
         {
             c.Result = result;
         }
diff --git a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/ExtensionHost.cs b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/ExtensionHost.cs
index ed8ecb9566..cc9e2af15f 100644
--- a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/ExtensionHost.cs
+++ b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/ExtensionHost.cs
@@ -19,7 +19,7 @@ public partial class ExtensionHost
     /// <param name="message">The log message to send</param>
     public static void LogMessage(ILogMessage message)
     {
-        if (Host != null)
+        if (Host is not null)
         {
             _ = Task.Run(async () =>
             {
@@ -42,7 +42,7 @@ public partial class ExtensionHost
 
     public static void ShowStatus(IStatusMessage message, StatusContext context)
     {
-        if (Host != null)
+        if (Host is not null)
         {
             _ = Task.Run(async () =>
             {
@@ -59,7 +59,7 @@ public partial class ExtensionHost
 
     public static void HideStatus(IStatusMessage message)
     {
-        if (Host != null)
+        if (Host is not null)
         {
             _ = Task.Run(async () =>
             {
diff --git a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/ExtensionInstanceManager`1.cs b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/ExtensionInstanceManager`1.cs
index 019b4dc398..b80742f8f7 100644
--- a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/ExtensionInstanceManager`1.cs
+++ b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/ExtensionInstanceManager`1.cs
@@ -55,7 +55,7 @@ internal sealed partial class ExtensionInstanceManager : IClassFactory
 
         ppvObject = IntPtr.Zero;
 
-        if (pUnkOuter != null)
+        if (pUnkOuter is not null)
         {
             Marshal.ThrowExceptionForHR(CLASS_E_NOAGGREGATION);
         }
diff --git a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/JsonSettingsManager.cs b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/JsonSettingsManager.cs
index 8cf8d49db5..09c1eebdbe 100644
--- a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/JsonSettingsManager.cs
+++ b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/JsonSettingsManager.cs
@@ -76,7 +76,7 @@ public abstract class JsonSettingsManager
                 {
                     foreach (var item in newSettings)
                     {
-                        savedSettings[item.Key] = item.Value != null ? item.Value.DeepClone() : null;
+                        savedSettings[item.Key] = item.Value is not null ? item.Value.DeepClone() : null;
                     }
 
                     var serialized = savedSettings.ToJsonString(_serializerOptions);
diff --git a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/Settings.cs b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/Settings.cs
index 0d163ec3fb..fbd74ce694 100644
--- a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/Settings.cs
+++ b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/Settings.cs
@@ -41,7 +41,7 @@ public sealed partial class Settings : ICommandSettings
             .Values
             .Where(s => s is ISettingsForm)
             .Select(s => s as ISettingsForm)
-            .Where(s => s != null)
+            .Where(s => s is not null)
             .Select(s => s!);
 
         var bodies = string.Join(",", settings
@@ -77,7 +77,7 @@ public sealed partial class Settings : ICommandSettings
             .Values
             .Where(s => s is ISettingsForm)
             .Select(s => s as ISettingsForm)
-            .Where(s => s != null)
+            .Where(s => s is not null)
             .Select(s => s!);
         var content = string.Join(",\n", settings.Select(s => s.ToState()));
         return $"{{\n{content}\n}}";
@@ -86,7 +86,7 @@ public sealed partial class Settings : ICommandSettings
     public void Update(string data)
     {
         var formInput = JsonNode.Parse(data)?.AsObject();
-        if (formInput == null)
+        if (formInput is null)
         {
             return;
         }
diff --git a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/SettingsForm.cs b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/SettingsForm.cs
index 79f548bf56..2bab5e78dc 100644
--- a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/SettingsForm.cs
+++ b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/SettingsForm.cs
@@ -19,7 +19,7 @@ public partial class SettingsForm : FormContent
     public override ICommandResult SubmitForm(string inputs, string data)
     {
         var formInput = JsonNode.Parse(inputs)?.AsObject();
-        if (formInput == null)
+        if (formInput is null)
         {
             return CommandResult.KeepOpen();
         }
diff --git a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/ShellHelpers.cs b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/ShellHelpers.cs
index 4ab7cfb02f..6c761edcf2 100644
--- a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/ShellHelpers.cs
+++ b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/ShellHelpers.cs
@@ -125,7 +125,7 @@ public static class ShellHelpers
         else
         {
             var values = Environment.GetEnvironmentVariable("PATH");
-            if (values != null)
+            if (values is not null)
             {
                 foreach (var path in values.Split(';'))
                 {
diff --git a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/StringMatcher.cs b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/StringMatcher.cs
index 798bce3b9f..6d9009661a 100644
--- a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/StringMatcher.cs
+++ b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/StringMatcher.cs
@@ -93,7 +93,7 @@ public partial class StringMatcher
 
         query = query.Trim();
 
-        // if (_alphabet != null)
+        // if (_alphabet is not null)
         // {
         //    query = _alphabet.Translate(query);
         //    stringToCompare = _alphabet.Translate(stringToCompare);
diff --git a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/TextSetting.cs b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/TextSetting.cs
index aaa8c2fbee..7cf9147159 100644
--- a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/TextSetting.cs
+++ b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/TextSetting.cs
@@ -50,7 +50,7 @@ public partial class TextSetting : Setting<string>
     public override void Update(JsonObject payload)
     {
         // If the key doesn't exist in the payload, don't do anything
-        if (payload[Key] != null)
+        if (payload[Key] is not null)
         {
             Value = payload[Key]?.GetValue<string>();
         }
diff --git a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/ToggleSetting.cs b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/ToggleSetting.cs
index c5e1838608..cdb7b72b25 100644
--- a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/ToggleSetting.cs
+++ b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/ToggleSetting.cs
@@ -43,7 +43,7 @@ public sealed class ToggleSetting : Setting<bool>
     public override void Update(JsonObject payload)
     {
         // If the key doesn't exist in the payload, don't do anything
-        if (payload[Key] != null)
+        if (payload[Key] is not null)
         {
             // Adaptive cards returns boolean values as a string "true"/"false", cause of course.
             var strFromJson = payload[Key]?.GetValue<string>() ?? string.Empty;