The Steam Deck ran it surprisingly well, to be honest. I used the settings off this page and it ran at a pretty solid ~40 FPS.
Not my favorite game, but it was pretty and fun to jump around hacking people as I hacked at people (with a katana). Story was ok, and the ending was just a bit meh for me, but worth it in my eyes.
Next I’m on to playing Outer Wilds docked to the TV with my partner. I’m a few cycles into it and am hooked. The Steam Deck was an excellent buy!
You’re doing it right. I always recommend The Outer Wilds as a couple’s game even though it’s single player for that reason. The puzzles and story are so good that my GF loved playing it with me. I almost wish I could wipe my memory and play it again for the first time.