I am using the Xbox One controller. I had to pair it with Windows once to fix a connection problem, but now it’s problem-free. I’m pretty sure that the problem and solution was described on Arch Wiki but I can’t find it now. Basically it was stuck on disconnecting and connecting again until Windows didn’t update its firmware
It’s a tool (and protocol, I think) for managing displays in X11. It’s displayed among two Windows tools in the Protonfixes changelog.