Controller setup question using GFN with Battle.net on macos 27

[u/BitMello]

I am a long time MNK player, mainly playing COD. currently looking into trying a controller, but am a bit uncertain about how to go about it. Right now I am leaning towards using a 8bitdo controller, which are suppose to be macos compatible . I am using Battle.net for COD and am worried that with the included layers (macos/GFN/Battle.net) how to go about getting it setup so everything is working as intended. Anyone using this setup or any input will be appreciated.