This was the case when there was only MME. With something like a Voicemeter and Audacity you can have similar setup. I was able to have voice call on Messenger

This was the case when there was only MME. With something like a Voicemeter and Audacity you can have similar setup. I was able to have voice call on Messenger and simultanously stream it to the Facebook using OBS. But it's very clunky, that's true.