I'm pretty sure that pretty much all of the people doing that will be using vpns. I mean come on, vpns are one of the most known services on the internet. In the wake of shadowbaning, global silencing by social networks and being penalized on the basis of anything that deviates at least a bit from the norm, anybody who wants to speak like a normal person on the internet has to use a vpn. You can bet that whoever goes way beyond what is considered normal on Zoom will be using a vpn.