Multiple AMD GPU drivers from the last year do not work properly with this game. Get crashes, hangs, a picture in one part of the screen, etc.
This system has a 6900xt but also seen it on a 6800xt. Oddly, an intel arc a750 in another system works. it's sad that intel is ahead of amd on drivers for an old game.
Make reports to AMD
October 2022 I think are the last drivers that work fine... And for low FPS /r_primitives 2 and r_ext_multisample 0.
AMD have been lacking for some time with OpenGL, in my experience. My favourite game, Exanima also uses it and some AMD users have issues with it. Seems AMD might have abandoned OpenGL support.