I clicked around a lot and now somehow it showed up as an XBox controller for a while.
I noticed that in the configuration somehow two axes showed up as "---".
No idea what I did, but now the left stick does register left/right.
Now for the stubborn right stick...
While I'm here, are there other controllers that work well with Windows 10/11?
I think that an Xbox Series X controller should work out of the box... Does anybody use one of those on PC and can tell me if it's hassle-free?
Need something off Play-Asia? http://www.play-asia.com/