When you look at the audio routing in Linux "teams" is no where to be seen. It's all "skype". So apparently they just took Skype and made it "enTeRpRise"
Well to be fair they have destroyed Skype as well. It used to work well, now it's a joke with messages often not delivered for random long time periods, call not getting through when both people are online, and just generally failing at the basics. But before MS rewrote it, then it worked very well.