### 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_FAIL_COND_V_MSG(!tts, TypedArray<Dictionary>(), "Enable the \"audio/general/text_to_speech\" project setting to use text-to-speech.");
	return tts->get_voices();
}
void DisplayServerWindows::tts_speak(const String &p_text, const String &p_voice, int p_volume, float p_pitch, float p_rate, int p_utterance_id, bool p_interrupt) {
	ERR_FAIL_COND_MSG(!tts, "Enable the \"audio/general/text_to_speech\" project setting to use text-to-speech.");
	tts->speak(p_text, p_voice, p_volume, p_pitch, p_rate, p_utterance_id, p_interrupt);
}
void DisplayServerWindows::tts_pause() {
	ERR_FAIL_COND_MSG(!tts, "Enable the \"audio/general/text_to_speech\" project setting to use text-to-speech.");
	tts->pause();
}
void DisplayServerWindows::tts_resume() {
	ERR_FAIL_COND_MSG(!tts, "Enable the \"audio/general/text_to_speech\" project setting to use text-to-speech.");
	tts->resume();
}
void DisplayServerWindows::tts_stop() {
	ERR_FAIL_COND_MSG(!tts, "Enable the \"audio/general/text_to_speech\" project setting to use text-to-speech.");
	tts->stop();
}
void DisplayServerWindows::mouse_set_mode(MouseMode p_mode) {
	_THREAD_SAFE_METHOD_
	if (mouse_mode == p_mode) {
		
		return;
	}
	mouse_mode = p_mode;
	_set_mouse_mode_impl(p_mode);
}
DisplayServer::MouseMode DisplayServerWindows::mouse_get_mode() const {