To add on to this, noise reducing earplugs are also a thing - search for “concert earplugs” or something like that.
Using them I was able to watch Godzilla in a movie theater without constantly wincing as well as go to a concert at a bar and actually have a decent time. Highly recommend for general use, I carry them everywhere now.
Monster Hunter: World + Iceborne was on sale so I snagged it and I’ve enjoyed it quite a bit. Runs just fine on the deck and even though the game is clearly intended for multiplayer it works totally fine as a solo game.
The main issue I had with the game is that there’s no pause button (as mentioned, it’s a game oriented towards multiplayer) which isn’t really compatible with my current life but with Decky Loader and the Pause Game plugin installed I can easily pause the game mid-quest without worrying about failing the time limit.