### 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)
if (p_property.name == "position" && initial_position != WINDOW_INITIAL_POSITION_ABSOLUTE) {
		p_property.usage = PROPERTY_USAGE_NONE;
	}
	if (p_property.name == "current_screen" && initial_position != WINDOW_INITIAL_POSITION_CENTER_OTHER_SCREEN) {
		p_property.usage = PROPERTY_USAGE_NONE;
	}
	if (p_property.name == "theme_type_variation") {
		List<StringName> names;
		
		
		ThemeDB::get_singleton()->get_default_theme()->get_type_variation_list(get_class_name(), &names);
		if (ThemeDB::get_singleton()->get_project_theme().is_valid()) {
			ThemeDB::get_singleton()->get_project_theme()->get_type_variation_list(get_class_name(), &names);
		}
		names.sort_custom<StringName::AlphCompare>();
		Vector<StringName> unique_names;
		String hint_string;
		for (const StringName &E : names) {
			
			if (unique_names.has(E)) {
				continue;
			}
			hint_string += String(E) + ",";
			unique_names.append(E);
		}
		p_property.hint_string = hint_string;
	}
}
void Window::set_title(const String &p_title) {