AMD with ray tracing isn’t great. Not as bad as it used to be, but pretty lackluster overall compared to Nvidia (and to a lesser extent Intel’s GPU offerings). Linux ray tracing via Proton is also not as optimized at present, so that can take something “passable” in windows and make it unplayable on an AMD card in Linux. If you get something overkill for the resolution you’re playing at that can somewhat make up the difference.
If you’re gaming you might as well just jump on Bazzite if you’re already interested in Kinoite. Very similar base, but Bazzite has some extras Kinoite doesn’t and it makes a transition into an immutable distro easier.