Ghost of Tsushima singleplayer is now Steam Deck verified! - Steam News
c/steamdeck · u/Fubarberry@sopuli.xyz · 95 points
The biggest steam deck compatibility issue is that the multiplayer mode wasn't supported. From what I understand that hasn't changed, but they moved it to a separate free DLC so it won't affect the steam deck rating.
Other related improvements made are UI changes for steam deck, a deck graphics preset, updated FSR support, and other performance improvements.