I have used my Nuance Powermic II fine with macOS and under parallels.
However with fusion, it shows as connected under virtual machine->usb and bluetooth->
and it shows up under device manager
however under settings->sound-> it is selected as the input source but not receiving any input. when I change to internal mic it works fine.
So, basically seems to be installed correctly and selected as input just doesn’t want to actually be a microphone….???