A good example: their SN30 Pro has a bad bluetooth chip in it that makes Xinput support really laggy (I don't know the specifics). It's been years now, and had a few firmware updates, but there's still been no fix. It works great for everything else though, so I still keep it around.

Just a warning for anyone thinking of buying one after reading this...

Should be the ability to freely remap their controls using the Steam Input interface. They've always worked on Deck as regular XInput devices.

There was a post from Valve a while back, you can now remap the back pedals via Steam, so they're now recognized as a different input button instead of having to use their software to mapping it to one of the existing buttons. At least that's my understanding, I don't own any 8bitdo, and this was the reason I never bought one, so that might change in the near future.

The 8bitdo Ultimate 2 is pretty close to an XBox controller and it has a gyro. The problem is that while the gyro works great on Switch, it's severely limited on PC, as it can only emulate the right stick with very few settings. The Steam Input update could potentially fix that, but I haven't tested it yet.

The Gamesir Supernova has gyro, and it is very similar to an XBox controller.