This isn’t big news IMO. SteamOS has been planned for a “hardware agnostic” release with a proper installer for a while now. Makes sense they’d add some graphics to market devices with.

That being said, it would be nice if it’s truly a precursor to some new handhelds supporting SteamOS as first party options; more Devs and more users on Linux is a great thing. But I wouldn’t take this as a sign of anything certain yet