[x] that I haven't found an existing compatibility report for this game.
[x] that I have checked whether there are updates for my system available.
Symptoms
Tested on both Proton 9 and Proton Experimental, Experimental works much better there are no graphical artifacts, except for one in screenshot.
Very low fps below 20 fps, on any graphics and render settings DX11 or DX12.
There are also graphical artifacts entire screen if you select temporary antialiasing and set it to 25% (low)
When installing the game and trying to control the game, the keys are not detected by the game. The keyboard, namely the control of equipment and the player, is not possible, only using the mouse.
Steam Deck has a similar behavior as Linux Desktop, while on same PC configuration as above, Windows 10 22H2 have 60 fps is consistently running at medium-high dx12 settings.
Compatibility Report
System Information
Video driver version:

Kernel version: 6.9.10-amd64
Link to full system information report as:
4 Gist proton logs with DX11 renderer different preset graphics
proton log with DX12 renderer MINIMAL-LOW
proton log with DX12 renderer LOW-MIDDLE
proton log with DX12 renderer HIGH-VERYHIGH
Proton version: latest Proton Experimental
I confirm:
Symptoms
Tested on both Proton 9 and Proton Experimental, Experimental works much better there are no graphical artifacts, except for one in screenshot.
Very low fps below 20 fps, on any graphics and render settings DX11 or DX12.
There are also graphical artifacts entire screen if you select temporary antialiasing and set it to 25% (low)
When installing the game and trying to control the game, the keys are not detected by the game. The keyboard, namely the control of equipment and the player, is not possible, only using the mouse.
Steam Deck has a similar behavior as Linux Desktop, while on same PC configuration as above, Windows 10 22H2 have 60 fps is consistently running at medium-high dx12 settings.
Status: Non-playable (very low fps)