### Godot version

4.0.3.stable

### System information

windows 11

### Issue description

fullscreen on the window node is not working and will show up as a windowed.

### Steps to reproduce

disable Embed Subwindows in Project Settings/Display/Window.
create a window node and set its mode to fullscreen.

### Minimal reproduction project

[fullscreen.zip](https://github.com/godotengine/godot/files/11821834/fullscreen.zip)
ERR_READ_THREAD_GUARD_V(String());
	return title;
}
void Window::set_initial_position(Window::WindowInitialPosition p_initial_position) {
	ERR_MAIN_THREAD_GUARD;
	initial_position = p_initial_position;
	notify_property_list_changed();
}
Window::WindowInitialPosition Window::get_initial_position() const {
	ERR_READ_THREAD_GUARD_V(WINDOW_INITIAL_POSITION_ABSOLUTE);
	return initial_position;
}
void Window::set_current_screen(int p_screen) {