Steam does a lot of upstream graphic/proton works. A distro like debian that update once a year is going to be a bad idea. It means a fix in graphic stack or p

Steam does a lot of upstream graphic/proton works. A distro like debian that update once a year is going to be a bad idea. It means a fix in graphic stack or proton will either, 1. deliver after a whole year, and get actually feedback after two years. 2. require a lot of backport so steam can actually use it. Rolling update in the other end, suits well with the changing nature of graphic stacks.