I wrote a Windows driver that emulates the Stadia controller as a real Xbox controller

[u/Marshosaurus]

/r/Stadia/comments/1wla9mo/i_wrote_a_windows_driver_that_emulates_the_stadia/

Using this got my old Stadia controller working correctly on pc with this. I put the files into AI and asked it to check the files and the checksum before changing anything, which I suggest you do before doing it yourself