diff --git a/desktop/src-tauri/src/lib.rs b/desktop/src-tauri/src/lib.rs
index f5d3aab11..174e36a57 100644
--- a/desktop/src-tauri/src/lib.rs
+++ b/desktop/src-tauri/src/lib.rs
@@ -383,7 +383,17 @@ pub fn run() {
         .plugin(tauri_plugin_opener::init())
         .plugin(
             tauri_plugin_window_state::Builder::default()
-                .with_state_flags(StateFlags::all() & !StateFlags::VISIBLE)
+                // The main window should always launch edge-to-edge in the
+                // available desktop area. Do not let stale saved geometry or
+                // fullscreen state override the maximized launch config.
+                .with_state_flags(
+                    StateFlags::all()
+                        & !(StateFlags::VISIBLE
+                            | StateFlags::POSITION
+                            | StateFlags::SIZE
+                            | StateFlags::MAXIMIZED
+                            | StateFlags::FULLSCREEN),
+                )
                 .build(),
         )
         .plugin(tauri_plugin_websocket::init())
diff --git a/desktop/src-tauri/tauri.conf.json b/desktop/src-tauri/tauri.conf.json
index f13fb30c3..6215ef605 100644
--- a/desktop/src-tauri/tauri.conf.json
+++ b/desktop/src-tauri/tauri.conf.json
@@ -19,6 +19,7 @@
         "title": "",
         "width": 800,
         "height": 600,
+        "maximized": true,
         "visible": false,
         "titleBarStyle": "Overlay",
         "hiddenTitle": true,