Sorry I meant TIL about it being considered stable, haha. I’ve known about Fedora because I used it when it was meant to replace the free Red Hat Linux.
As for Steam, I don’t recall how I installed it, sorry! I just recall significant grief getting it going (again, perhaps a skill issue) but had no big roadblocks using OpenSUSE.
The two aren’t even in the same league. I’m a big open source advocate don’t get me wrong, but VirtualBox is horrible to use and its not what OP asked.