Fix

src/Files.App/Data/Contexts/Multitasking/MultitaskingContext.cs

@@ -39,7 +39,6 @@ public MultitaskingContext()
 		private void AppInstances_CollectionChanged(object? sender, NotifyCollectionChangedEventArgs e)
 		{
 			UpdateTabCount();
-			AppLifecycleHelper.SaveSessionTabs();
 		}
 		private void AppModel_PropertyChanged(object? sender, PropertyChangedEventArgs e)
 		{

src/Files.App/Helpers/Navigation/NavigationHelpers.cs

@@ -61,6 +61,8 @@ public static async Task AddNewTabByPathAsync(Type type, string? path, int atInd
 			MainPageViewModel.AppInstances.Insert(index, tabItem);
 
 			App.AppModel.TabStripSelectedIndex = index;
+
+			AppLifecycleHelper.SaveSessionTabs();
 		}
 
 		public static async Task AddNewTabByParamAsync(Type type, object tabViewItemArgs, int atIndex = -1)
@@ -86,6 +88,8 @@ public static async Task AddNewTabByParamAsync(Type type, object tabViewItemArgs
 			var index = atIndex == -1 ? MainPageViewModel.AppInstances.Count : atIndex;
 			MainPageViewModel.AppInstances.Insert(index, tabItem);
 			App.AppModel.TabStripSelectedIndex = index;
+
+			AppLifecycleHelper.SaveSessionTabs();
 		}
 
 		private static async Task UpdateTabInfoAsync(TabBarItem tabItem, object navigationArg)

src/Files.App/UserControls/TabBar/BaseTabBar.cs

@@ -147,6 +147,9 @@ public void CloseTab(TabBarItem tabItem)
 				tabItem.NavigationParameter,
 			});
 
+
+			AppLifecycleHelper.SaveSessionTabs();
+
 			if (Items.Count == 0)
 				MainWindow.Instance.Close();
 		}