That looks amazing, you're a good UI designer. I can't get my head around Godot's UI builder, l very much prefer Unity's, so seeing something like your GodotOS blows my mind.
Thanks! I've actually used Unity before Godot and I can tell you the UI system here is a lot easier to deal with compared to Unity once you understand it. Also there aren't 3 different technologies to make one user interface. Unity's UI Toolkit was still kind of a mess last time I've seen it.