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
Yeah, it’s not released or supported outside of the Steam Deck. So you’re probably not going to get Nvidia drivers or anything else that’s not built in to the kernel.