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


Notably Epic charges less than 30% (something like 12% IIRC) to try to get more of that market. They even give away games. But their app is still inferior so it gets less use.
Because Epic doesn’t care about end users and won’t add necessary end user features like reviews.
It’s cool that Epic wants to pay developers more, but the way they disregard the consumer makes the platform non-viable