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


Allow me to be pedantic here. What you were referring to here, “PC”, stands for “personal computer”. It’s a device on where you can perform computation. Sometimes that computation is to render video streams encoded in H.264 onto the screen, and sometimes it happens to take in your control signal to alter that video stream, like video games. You are free to perform any kind of computation on it.
“PC” has no implications of Microsoft or Windows.
Allow me to match your pedantry.
A “denotation” is an exact, codified definition of a word, commonly thought of as a “dictionary definition.”
A “connotation” is a less official but culturally understood meaning of a word, often dependent on context or setting.
“PC” connotes Windows in the gaming world. But thanks for taking time out of your day to tell me what it stands for, etc 🙄