The US Supreme Court then reversed the Ninth Circuit ruling. You’re quoting the background that gives context to the case in the lixned article.

It works pretty well, and that was without customising the controls. You definitely feel the limitations when doing some more complicated things like wire layouts for circuits, but it can be done. When I later played the Exotic Industries mod, then it felt like it wasn’t quite enough (configuring radial menus helped though).

I played a whole run of the base game without mods on my Steam Deck in handheld mode and found it just fine. It uses the extra buttons on the back quite effectively.