I've enjoyed both Yakuza 0 and God of War on my deck. Initially I had issues with God of War crashing due to the game's memory leak issue, but upping my swap file size fixed that for me.
Earthbound is absolutely perfect to play on the Deck. Everything is easy to read, you can play it anywhere, pause and resume is extremely fast (obviously) and battery life is exceptional as a SNES does not take much to run.