Valve's Steam Controller team has announced that the Switch's Pro Controller, a dual-analog controller with similar shape and arrangement to the Xbox One controller, is now officially supported on Steam.
Users who are a part of the Steam client beta can now set the controller up via Steam Input and start using it in games now. You can customize the controller on a per game basis and even set a toggle to make the games recognize the Nintendo layout which swaps A/B and X/Y.
You can create and edit setups as you see fit and share those profiles with other users, or borrow theirs if they have a better setup. Steam even supports the Pro Controller's motion control for games that take advantage of that.
[Source: Steam]
Our Take
It's cool that this was clearly something they decided to work on and make work as well as possible. I wonder if Nintendo was made aware of it, but I'm happy I now have the option of an extra controller to use on PC.