Whatever you know best. My personal choice of distro is Gentoo, my gaming pc and my carry laptop both run it. My games run great in gentoo, and because I understand it best, I deal with few issues. For a long time it was Arch, and before that Ubuntu. I used Ubuntu for only maybe 2 months before moving onto Arch then Gentoo. My games always worked, but once I really understood Linux, they ran great.
What is the best distro for gaming?
I know gaming has gotten a lot better on Linux and I’m working on a new PC and I’m wondering which distro to try.