I use the ace headphones in office as my primairy video calling headset. In a busy office environment I get complaints for other people in the meeting that they can hear a lot of noise from other people talking in the room. As for my side: I can either choose aware mode and experience the same. Hear all the noise in the room and my own voice, or I can switch on anc and the room goes completely silent and I cannot hear myself properly anymore. There is no in between (sometimes reffered to as side tone) where me and the people in the meeting can only hear my voice clearly, but all the other noise is cancelled.
This makes them pretty much useless for office calls. There is no voice isolation that can distinct between my voice and other sounds