fix: don't show the tray window at startup with --minimized

App.Avalonia/App.axaml.cs

@@ -113,22 +113,22 @@ public override void OnFrameworkInitializationCompleted()
             }
         }
 
+        // Not desktop.MainWindow: the lifetime always shows that at startup.
+        // Hiding it again right away races the X11 window manager, which can
+        // leave an empty window on screen.
         _trayWindow = _services.GetRequiredService<TrayWindow>();
 
-        // Make TrayWindow the MainWindow so dialogs can use it as an owner.
-        desktop.MainWindow = _trayWindow;
-
         // If launched with --minimized (e.g. XDG autostart), keep startup
         // behavior as tray-first. Otherwise, show the tray window so manual
         // launches are visible even when tray icon integration is missing.
         if (startMinimized)
         {
             AppBootstrapLogger.Info("Startup mode: minimized to tray (--minimized)");
-            _trayWindow.RequestHideOnFirstOpen();
         }
         else
         {
             AppBootstrapLogger.Info("Startup mode: showing tray window");
+            _trayWindow.Show();
         }
 
         _trayIconViewModel = new TrayIconViewModel(ToggleTrayWindow, () => desktop.Shutdown());

App.Avalonia/Services/AvaloniaClipboardService.cs

@@ -11,7 +11,7 @@ public async Task SetTextAsync(string text)
     {
         if (Application.Current?.ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
         {
-            var clipboard = desktop.MainWindow?.Clipboard;
+            var clipboard = desktop.Windows.FirstOrDefault()?.Clipboard;
             if (clipboard != null)
                 await clipboard.SetTextAsync(text);
         }

App.Avalonia/Services/AvaloniaWindowService.cs

@@ -86,10 +86,11 @@ private static void ShowWindow(Window window, bool useOwner)
     {
         var desktop = Application.Current?.ApplicationLifetime as IClassicDesktopStyleApplicationLifetime;
 
-        if (desktop?.MainWindow is TrayWindow trayWindow && trayWindow != window && trayWindow.IsVisible)
+        var trayWindow = desktop?.Windows.OfType<TrayWindow>().FirstOrDefault();
+        if (trayWindow != null && trayWindow != window && trayWindow.IsVisible)
             trayWindow.Hide();
 
-        var owner = useOwner ? desktop?.MainWindow : null;
+        var owner = useOwner ? trayWindow : null;
         if (owner != null && owner != window && owner.IsVisible)
             window.Show(owner);
         else

App.Avalonia/Views/TrayWindow.axaml.cs

@@ -24,7 +24,6 @@ public partial class TrayWindow : Window
     private TrayWindowLoginRequiredPage _loginRequiredPage;
     private TrayWindowMainPage _mainPage;
 
-    private bool _hideOnFirstOpen;
     private DateTime _suppressAutoHideUntilUtc;
     private bool _positionUpdateQueued;
     private int _sizeChangedCount;
@@ -63,13 +62,6 @@ public TrayWindow()
         Opened += (_, _) =>
         {
             AppBootstrapLogger.Info("Tray window opened");
-            if (_hideOnFirstOpen)
-            {
-                _hideOnFirstOpen = false;
-                Hide();
-                return;
-            }
-
             PositionInBottomRight();
         };
 
@@ -127,11 +119,6 @@ public TrayWindow(
         SetPageByState(_rpcController.GetState(), _credentialManager.GetCachedCredentials());
     }
 
-    public void RequestHideOnFirstOpen()
-    {
-        _hideOnFirstOpen = true;
-    }
-
     public void ShowNearSystemTray()
     {
         // Show() must be called before Activate() will do anything.