>>105983156I looked up a video to prove you wrong but it turns out there is a small to moderate fps boost running games in CachyOS vs Mint, at least when running them via Steam. I couldn't find any benchmarks comparing other runners, which give you more options than Steam and tend to run better in my experience.
https://www.youtube.com/watch?v=_APcv8Xyj98
So congrats on being right, anon.