Don’t care. Already switched to linux.

What distro?

I started with Mint about a year ago on my daily driver and it has exceeded my expectations. I’ve put it on a mini-pc as well. I’ve still got a PCVR machine running Win10 Enterprise. That’s going to get SteamOS when I get around to it.

SteamOS isn’t publicly available and is very unlikely to be fully open source if/when it’s made available publicly. Your best bet is probably either Bazzite or Cachy (I would say use Bazzite if you still feel like a noob).

Bazzite is my secomd choice but the SteamOS image has been available for awhile now. It’s intended for Valve devices but my understanding is that people have been getting it to run on regular PC’s. I haven’t been keeping up with the latest news though, so I’m mot sure what the success rate is.

I just don’t see why you’d wanna deal with all that jank to get Valve’s proprietary OS running. In my experience, Steam games pretty much Just Work to about the same degree on any Linux distro thanks to how Proton works. And if you have any interest in non-Steam games, Bazzite is going to be a much better choice than SteamOS.