You didn't mention your hardware, but gaming in general benefits from a rolling distro for things like latest drivers, latest wine version etc. (Be aware though that if you have an Nvidia card you'll have to run the proprietary driver, the open source one performs poorly.)
I understand being wary of Arch-derivatives, but it sounds like you're the kind of user who would benefit from it and has plenty of experience with Linux, so I can sincerely recommend it. And since this is for a personal computer, nothing bad is really going to happen if it ends up not working out other than the mild annoyance of having to install something else.
But honestly, things don't break all that often, at least for me. For reference, I've been using Endeavour with KDE for a year, and the only real problem I can remember off the top of my head is that Steam was broken for like a week when the new UI rolled out that was somehow incompatible with the current Nvidia driver, but this got fixed with the next update and there was a workaround to make it run with the old UI so it remained usable.
I'm a fan of his other secret ingredient. CHEESE.