No Man's Sky and a Resident Evil reissue are the two big ones currently that Apple is touting.
I'd argue Apple shot themselves in the foot by depreciating 32-bit libraries as fast as they did. If they had Proton, the Macbooks could be enjoying the same surge in gaming popularity the Steam Deck has.
My relatively anemic "Mac compatible" list of games, in my Steam library, went from about 20 to 3.