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


Yet
Yet, unlike other sectors yet.
High chances that this changes. Monopolies are built friendly and get enshitificated later, one baby step at a time.
Market will get harder and harder to join as studios optimise their processes for releases on steam and users get even more trained Games -> Steam.
Especially when Steam manages to kill PS and Xbox, where I see big potential that this happens.