> the most likely difference will be that the game GUI will be redrawn every frame whereas the desktop GUI wont (and there are game GUI frameworks that cache th

> the most likely difference will be that the game GUI will be redrawn every frame whereas the desktop GUI wont (and there are game GUI frameworks that cache their output to avoid redrawing the entire widget tree every frame). Modern UI toolkits (WPF, QML, JavaFX) operate on a scene graph, so they work exactly the same. Android is slowly catching up; it's a disgusting mix of the worst of both worlds.