Phoronix article: https://www.phoronix.com/news/Steam-Machines-Frame-2026
Also listed here: https://store.steampowered.com/sale/hardware
Valve has already sent support for the new Steam Controller upstream: https://www.phoronix.com/news/New-Steam-Controller-SDL
I’m curious about the “it’s a PC” aspect of the Steam Box. Because a device that plays all Steam games but isn’t a Windows computer is extremely appealing, but I admit if I can’t install a few non-Steam games on it, that’s a spoiler for me. But if the whole “it’s a PC” provides some avenue to that, I’m definitely ready to stop building a gaming PC every 5 years.
If you are looking to get it or try linux gaming in general then I would recommend looking at heroic games launcher which supports games from epic, gog, and Amazon. Past that there is always a huge list of other games (and applications) available for install from lutris' website. And bottles for specific things, but that is a bit more advanced/nuanced to setup.