Windows App size is not setting to Full screen

[Prajit7]

The window does not set to fullscreen when using the property size: WidgetsBinding.instance.window.physicalSize. It does not adjust to the maximum available width and height.

Below is the code which I am using:
windowManager.ensureInitialized().whenComplete(() {
windowManager.waitUntilReadyToShow(
WindowOptions(
size: WidgetsBinding.instance.window.physicalSize,
title: "Test",
), () async {
await windowManager.setResizable(false);
await windowManager.show();
await windowManager.focus();
});
});

The output is like: