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


Fwiw, GOG has no DRM for their titles (its own niche space, not competition). Not sure if they charge 30% too, but even in such case they’re giving you more because of the lack of DRM.
Steam is quite virtuous, they gave us Proton. But is far from being based.