Hahaha! I was hoping to hear from some actual users here on MacRumors. My audio interface not working is one thing but the entire OS not working is much worse. MOTU's driver is not beta, apparently it's their final release. Guys over at the MOTU forum are reporting mixed issues with the Catalina driver. So I'll wait, but thanks.
is there a moto forum? perhaps you can find some catalina users there. meanwhile, (& you should start a seperate thread for it), what's wrong with the OS?
make sure, too, that the microphone is enabled (in system preferences>security & privacy) for your DAW (ie logic, etc).
if it were me, i'd install the motu driver; not sure what you're worried about... anyway, good luck!