I know Biomutant, the Game in question here runs fine, already had it up and running with Manjaro.
Since the Last fresh install of system, when I try to run the Game from Steam, I am stuck with “First Time Setup: installing Microsoft DirectX for Windows” screen.
Just does not do anything there.
Other games, also using Proton, work perfectly fine, e.g. Cyberpunk, Control, Doom.
System is an AMD RX6800 and a R5 5600X
Kernel 5.12.x