GamingOnLinux themselves pointed out that the rumor originated from Twitter user HandleDeck. They started speculating on potential Valve hardware, which was then picked up on eXtas1s. In turn, eXtas1s made their video with their own speculation, which was then covered by big video game press websites, including yours truly.

This says that the Valve is contributing to the card drivers to make them work with Steam OS. He goes on to speculate that Xbox is in a weakened position in the market, and Valve producing a console could slot into that position that Xbox seems to be vacating with its everything is an Xbox approach.

Valve rumored to be developing a new console to compete with Sony and Microsoft, using AMD's RDNA 4 tech. Previous Valve attempts with Steam Machines were unsuccessful, but the Steam Deck's success may influence a new console.