With the advances in gaming on Linux in recent years, it is so tempting to switch full time. I would absolutely love to, but I am a Game Pass Ultimate subscriber and it is where I play a lot of my games on PC. I know you can use the cloud version, but I cannot stomach streaming games in their current state, so it is a no go. A large portion of my Steam library is compatible, but anytime I have done an install I end up giving in and going back to Windows for games.
I’ve heard cutscenes can be problematic on some games. Something about the SteamDeck not supporting h264 I think 🤔. Warhammer 40,000 Boltgun is an example.
On cases like that switching to GE proton would be the way to go, easy to do you just need to click around in a program called ProtonUP-QT (easily found in the distros package manager) to install it, and then change it in the games properties
A good place to look to get help on getting games to work would be Protondb
To add context Valve can’t Legally add support for h264 in proton, but GE-proton is a community project not maintained by valve