


LD_PRELOAD="" %command%
crashes instantly when launched with proton 9+ LD_Preload needed to suppress lag after ~30min

It's great even thought there are some issues like slight lag and bugs but it's overall an good experience.
PROTON_NO_ESYNC=0 PROTON_NO_FSYNC=0 gamemoderun %command%
With fullscreen mode the game will lag a lot more, especially on DX11. With Windowed borderless it'll run much better
There are some small lag spikes here and there
"Fatal Error"

Haven't tried tinkering at all but with default settings and all low graphics the fps was miserable
Text is extremely small on the steam deck
On low settings it still ran poorly
Runs around 20-16fps

-dx11
Both DDS 1 and this performs much worse on linux, but soda (Custom wine) improved the performance about 20%

Runs out of the box
EZ

The game installs and starts fine with no unexpected bugs or performance issues other than hardware based performance issues.
frequent small stutters but nothing unexpected based on hardware

gamemoderun %command% -dx11
Without -dx11 the game is lagging asf
Without -dx11 the game launches but lags at 1 frame per minute. In full screen mode even with dx11 you can already play the game, but it will be a pain. Be sure to use proton experimental and the specified launch parameters. After loading into the main menu, immediately set the game mode to fullscreen windowed. Only after that it is possible to enjoy the game. Have fun.