From what I’ve read (this reddit link, basically https://www.reddit.com/r/SteamDeck/comments/15qfpfh/has_anyone_installed_a_different_version_of_linux/) the big issue with other distos, it sounds like to me, is a lack of driver support in older kernels. Which isn’t a distro specific problem. The other is device specific optimizations, which I agree Valve should share if they haven’t already.

Also, you specifically called out CentOS in your distro list. I don’t know if that was arbitrary or you have a specific vested interest in it, but CentOS is discontinued and will soon reach EOL (https://www.redhat.com/en/topics/linux/centos-linux-eol). Please don’t attempt to use it.