diff --git a/src/Uno.UWP/ApplicationModel/Core/CoreApplication.cs b/src/Uno.UWP/ApplicationModel/Core/CoreApplication.cs
index 41102fa7f3e4..01027663a7d6 100644
--- a/src/Uno.UWP/ApplicationModel/Core/CoreApplication.cs
+++ b/src/Uno.UWP/ApplicationModel/Core/CoreApplication.cs
@@ -1,59 +1,85 @@
 #pragma warning disable 108 // new keyword hiding
 #pragma warning disable 114 // new keyword hiding
+
+using System;
 using System.Collections.Generic;
 using Uno.Helpers.Theming;
 
-namespace Windows.ApplicationModel.Core
+namespace Windows.ApplicationModel.Core;
+
+public partial class CoreApplication
 {
-	public  partial class CoreApplication 
+	private static CoreApplicationView _currentView;
+	private static List<CoreApplicationView> _views;
+
+	static CoreApplication()
 	{
-		private static CoreApplicationView _currentView;
-		private static List<CoreApplicationView> _views;
+		_currentView = new CoreApplicationView();
+	}
 
-		public static event global::System.EventHandler<object> Resuming;
+	/// <summary>
+	/// Occurs when an app is resuming.
+	/// </summary>
+	public static event EventHandler<object> Resuming;
 
-		public static event global::System.EventHandler<global::Windows.ApplicationModel.SuspendingEventArgs> Suspending;
+	/// <summary>
+	/// Occurs when the app is suspending.
+	/// </summary>
+	public static event EventHandler<SuspendingEventArgs> Suspending;
 
-		static CoreApplication()
-		{
-			_currentView = new CoreApplicationView();
-		}
+	/// <summary>
+	/// Fired when the app enters the running in the background state.
+	/// </summary>
+	public static event EventHandler<EnteredBackgroundEventArgs> EnteredBackground;
+
+	/// <summary>
+	/// Fired just before application UI becomes visible.
+	/// </summary>
+	public static event EventHandler<LeavingBackgroundEventArgs> LeavingBackground;
 
-		/// <summary>
-		/// Raises the <see cref="Resuming"/> event
-		/// </summary>
-		internal static void RaiseResuming()
-			=> Resuming?.Invoke(null, null);
+	/// <summary>
+	/// Raises the <see cref="Resuming"/> event.
+	/// </summary>
+	internal static void OnResuming() => Resuming?.Invoke(null, null);
 
-		/// <summary>
-		/// Raises the <see cref="Suspending"/> event
-		/// </summary>
-		internal static void RaiseSuspending(SuspendingEventArgs args)
-			=> Suspending?.Invoke(null, args);
+	/// <summary>
+	/// Raises the <see cref="Suspending"/> event.
+	/// </summary>
+	/// <param name="args">Suspending event args.</param>
+	internal static void OnSuspending(SuspendingEventArgs args) => Suspending?.Invoke(null, args);
 
-		public static CoreApplicationView GetCurrentView()
-			=> _currentView;
+	/// <summary>
+	/// Raises the <see cref="EnteredBackground"/> event.
+	/// </summary>
+	/// <param name="args">Entered background event args.</param>
+	internal static void OnEnteredBackground(EnteredBackgroundEventArgs args) => EnteredBackground?.Invoke(null, args);
 
-		public static global::Windows.ApplicationModel.Core.CoreApplicationView MainView
-			=> _currentView;
+	/// <summary>
+	/// Raises the <see cref="LeavingBackground"/> event.
+	/// </summary>
+	/// <param name="args">Leaving background event args.</param>
+	internal static void OnLeavingBackground(LeavingBackgroundEventArgs args) => LeavingBackground?.Invoke(null, args);
 
-		public static IReadOnlyList<CoreApplicationView> Views
+	public static CoreApplicationView GetCurrentView() => _currentView;
+
+	public static CoreApplicationView MainView => _currentView;
+
+	public static IReadOnlyList<CoreApplicationView> Views
+	{
+		get
 		{
-			get
+			if (_views == null)
 			{
-				if(_views == null)
-				{
-					_views = new List<CoreApplicationView> { _currentView };
-				}
-
-				return _views;
+				_views = new List<CoreApplicationView> { _currentView };
 			}
-		}
 
-		/// <summary>
-		/// This property is kept in sync with the Application.RequestedTheme to enable
-		/// native UI elements in non Uno.UWP to resolve the currently set Application theme.
-		/// </summary>
-		internal static SystemTheme RequestedTheme { get; set; }
+			return _views;
+		}
 	}
+
+	/// <summary>
+	/// This property is kept in sync with the Application.RequestedTheme to enable
+	/// native UI elements in non Uno.UWP to resolve the currently set Application theme.
+	/// </summary>
+	internal static SystemTheme RequestedTheme { get; set; }
 }
diff --git a/src/Uno.UWP/Generated/3.0.0.0/Windows.ApplicationModel.Core/CoreApplication.cs b/src/Uno.UWP/Generated/3.0.0.0/Windows.ApplicationModel.Core/CoreApplication.cs
index 4adfa3d0426b..7d9ef8286ef3 100644
--- a/src/Uno.UWP/Generated/3.0.0.0/Windows.ApplicationModel.Core/CoreApplication.cs
+++ b/src/Uno.UWP/Generated/3.0.0.0/Windows.ApplicationModel.Core/CoreApplication.cs
@@ -173,38 +173,8 @@ public static void RunWithActivationFactories( global::Windows.Foundation.IGetAc
 			}
 		}
 		#endif
-		#if __ANDROID__ || __IOS__ || NET461 || __WASM__ || __SKIA__ || __NETSTD_REFERENCE__ || __MACOS__
-		[global::Uno.NotImplemented("__ANDROID__", "__IOS__", "NET461", "__WASM__", "__SKIA__", "__NETSTD_REFERENCE__", "__MACOS__")]
-		public static event global::System.EventHandler<global::Windows.ApplicationModel.EnteredBackgroundEventArgs> EnteredBackground
-		{
-			[global::Uno.NotImplemented("__ANDROID__", "__IOS__", "NET461", "__WASM__", "__SKIA__", "__NETSTD_REFERENCE__", "__MACOS__")]
-			add
-			{
-				global::Windows.Foundation.Metadata.ApiInformation.TryRaiseNotImplemented("Windows.ApplicationModel.Core.CoreApplication", "event EventHandler<EnteredBackgroundEventArgs> CoreApplication.EnteredBackground");
-			}
-			[global::Uno.NotImplemented("__ANDROID__", "__IOS__", "NET461", "__WASM__", "__SKIA__", "__NETSTD_REFERENCE__", "__MACOS__")]
-			remove
-			{
-				global::Windows.Foundation.Metadata.ApiInformation.TryRaiseNotImplemented("Windows.ApplicationModel.Core.CoreApplication", "event EventHandler<EnteredBackgroundEventArgs> CoreApplication.EnteredBackground");
-			}
-		}
-		#endif
-		#if __ANDROID__ || __IOS__ || NET461 || __WASM__ || __SKIA__ || __NETSTD_REFERENCE__ || __MACOS__
-		[global::Uno.NotImplemented("__ANDROID__", "__IOS__", "NET461", "__WASM__", "__SKIA__", "__NETSTD_REFERENCE__", "__MACOS__")]
-		public static event global::System.EventHandler<global::Windows.ApplicationModel.LeavingBackgroundEventArgs> LeavingBackground
-		{
-			[global::Uno.NotImplemented("__ANDROID__", "__IOS__", "NET461", "__WASM__", "__SKIA__", "__NETSTD_REFERENCE__", "__MACOS__")]
-			add
-			{
-				global::Windows.Foundation.Metadata.ApiInformation.TryRaiseNotImplemented("Windows.ApplicationModel.Core.CoreApplication", "event EventHandler<LeavingBackgroundEventArgs> CoreApplication.LeavingBackground");
-			}
-			[global::Uno.NotImplemented("__ANDROID__", "__IOS__", "NET461", "__WASM__", "__SKIA__", "__NETSTD_REFERENCE__", "__MACOS__")]
-			remove
-			{
-				global::Windows.Foundation.Metadata.ApiInformation.TryRaiseNotImplemented("Windows.ApplicationModel.Core.CoreApplication", "event EventHandler<LeavingBackgroundEventArgs> CoreApplication.LeavingBackground");
-			}
-		}
-		#endif
+		// Skipping already declared event Windows.ApplicationModel.Core.CoreApplication.EnteredBackground
+		// Skipping already declared event Windows.ApplicationModel.Core.CoreApplication.LeavingBackground
 		// Skipping already declared event Windows.ApplicationModel.Core.CoreApplication.Resuming
 		// Skipping already declared event Windows.ApplicationModel.Core.CoreApplication.Suspending
 	}