I am on Arch LInux. Really wanted to play the game, however, there was no option to change the resolution. Please do tell me how I can change the resolution as on my rig, the game's FPS drops.
There is no option to change the resolution you can only disable all the extras like volumetric lighting depth of field and stuff this might help
I strongly suggest to place one there as the game was lagging on my system. I can help you if you want if this game is made in Unity.