This may have already been suggested, but I did search and didn’t find it.

It would be nice if there was a user-activated toggle or something to say you have completed a game (i.e. Played and completed the story even if I didn’t complete achievements). I personally would like a banner on the cover art kinda like when it says “New Game” that you buy on Steam Deck. Maybe just some kind of symbol that says I’ve gotten through it.

Just a thought. :)