For PC Game Pass users, you’re out of luck. Valve’s Steam Controller reportedly only officially works with devices running Steam. That limitation is already proving to be a dealbreaker for some. As my colleague Richard Devine puts it, “this definitely kills it for me.”
Currently, Valve’s Steam Controller, like its predecessor, lacks standard drivers for Windows, Linux, and Mac, meaning you have to rely on Steam itself to actually use the controller. This isn't something you have to consider when purchasing other third-party (and cheaper) controllers.
With the original Steam Controller at least, the community stepped in and worked around this, creating tools that let it function properly across your entire PC rather than being locked to Steam.
For a controller that costs $99, though, you’d expect that level of flexibility out of the box.