So ill admit, CS2 never ran perfectly in windows either, and with everything having to be “shiny” and new all the time and with updates the game was bound to get laggy.
However I do wonder, is it the fault of my 15 year old amd fx cpu, or is it linux? I have a gtx 6700 gpu which should be plenty overkill for cs2. But ive heard cs2 is processor heavy. Im also still on ddr3, 32 gb.
It’s your CPU. The FX line came out a very, very long time ago, the first real quad cores. You need an upgrade to play games that came out last year. (Edit, I thought you meant Cities Skylines 2. Still, if you’re hoping for good framerates you can’t have a CPU that is that old)