Does the 8bitdo Ultimate 2 get recognized by macOS? I had bought one a few months back after 8bitdo had told me the beta firmware updates allowed the Ultimate 2 to work on macOS.
In the end the v2 software saw the controller and it was possible to flash it with the beta firmware but macOS couldn't recognize the controller which meant no games would see the controller.
The only exception was OpenEmu which uses its own drivers/implementation which allowed me to use the controller for some console emulation.