

gamemoderun %command%
If you skip the opening title cards the game will crash, but if you let them play out everything else works great

Haven't played too much yet but the text on the computer terminals is pretty small. Definitely readable but some people might want to use the zoom-in feature in SteamOS.
Audio mostly sounded great, was hearing some random light crackling here and there.
Haven't played too much yet but seems to run very nicely on Steam Deck. Recently got Remnant: From the Ashes and been playing that with a friend on PC. I've been enjoying the world so much I decided to pick this game up and play through it on Deck.
There is a regression in Proton, and I am not smart enough to know how to fix it on my own because I no longer see 7.0-4 as an option.
At the time of writing, Proton 7.04 is the current version and the game works great with that. However, it doesn't seem to work with older or newer versions--including Proton GE. I tried GE 7-24 as well as Experimental--didn't work on either of those. Would just crash before getting to the main menu. On 6.3-8, the intro cutscenes wouldn't play properly.
But currently it works great if you don't change anything. Just noting this for posterity.

PROTON_USE_D9VK=1 __NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia %command%
Sometimes it runs in smaller lower left corner and you have to change screen option in game so it turns back to normal
A few freezes when loading big areas, otherwise playable
A lot of frequent crashes (even in main menu) without PROTON_USE_D9VK=1 option. Can't play even a minute without this option.
A lot of frequent crashes (even in main menu) without PROTON_USE_D9VK=1 option. Can't play even a minute without this option.
An intro cinematic bug and one minor rendering issue; otherwise runs great.
Minor texture flickering on cloth surfaces, most noticeable at the beginning of the game.
The game seems to start in windowed mode, despite showing "fullscreen" in settings. Can be fixed with switching to "windowed" and back.
Intro movie/cinematic is not played properly, I see a black screen until it is finished.