### 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(false);
	String sname = p_name;
	if (!sname.begins_with("theme_override")) {
		return false;
	}
	if (sname.begins_with("theme_override_icons/")) {
		String name = sname.get_slicec('/', 1);
		r_ret = theme_icon_override.has(name) ? Variant(theme_icon_override[name]) : Variant();
	} else if (sname.begins_with("theme_override_styles/")) {
		String name = sname.get_slicec('/', 1);
		r_ret = theme_style_override.has(name) ? Variant(theme_style_override[name]) : Variant();
	} else if (sname.begins_with("theme_override_fonts/")) {
		String name = sname.get_slicec('/', 1);
		r_ret = theme_font_override.has(name) ? Variant(theme_font_override[name]) : Variant();
	} else if (sname.begins_with("theme_override_font_sizes/")) {
		String name = sname.get_slicec('/', 1);
		r_ret = theme_font_size_override.has(name) ? Variant(theme_font_size_override[name]) : Variant();
	} else if (sname.begins_with("theme_override_colors/")) {
		String name = sname.get_slicec('/', 1);
		r_ret = theme_color_override.has(name) ? Variant(theme_color_override[name]) : Variant();
	} else if (sname.begins_with("theme_override_constants/")) {
		String name = sname.get_slicec('/', 1);
		r_ret = theme_constant_override.has(name) ? Variant(theme_constant_override[name]) : Variant();
	} else {
		return false;
	}
	return true;
}
void Window::_get_property_list(List<PropertyInfo> *p_list) const {