This is by far the most popular choice for pro controllers for Switch (second only to the official Pro, of course). Steam recognizes it as a regular pro controller. I believe it is the same hardware and software used in the Gamecube version, as mentioned by @bgiesing [https://github.com/JibbSmart/JoyShockMapper/issues/28]
I have one, but I don't use it with JSM. For whatever reason it communicates very differently. It will not be trivial to add support, but since I have one, it's possible I'll add support in future. Thanks :)
This is by far the most popular choice for pro controllers for Switch (second only to the official Pro, of course). Steam recognizes it as a regular pro controller. I believe it is the same hardware and software used in the Gamecube version, as mentioned by @bgiesing [https://github.com/JibbSmart/JoyShockMapper/issues/28]