I don’t think it’s overheating. I regularly play something like Escape From Tarkov for 6-7 hours. Deleted the shot. Sorry about that.
Machine is pretty updated and always on new drivers, never crashes on me and is stable. Just weird development issues that always seem to happen. Let the game run for an hour or something and run around and see what happens when you get time. I remember the game being fine, then it just went dark and I thought “Ok must be some day/night thing or I triggered something”. Only other thing of note is that I saved/loaded a bunch.
Good luck with it.