BlueJeans and RingCentral might as well be clones of Zoom. Amazon Chime and Microsoft Teams are fine for me too, but I'm not picky.
The company my wife works for can't get a reliable Teams conference going with anyone in France.
The company lied about their encryption.
Both of these statements can be true, it's just a question of trade offs.
I know they just announced their own "Ring central video" But im weary of that for the time being.