I've had various really annoying issues (completely blank settings windows, sound devices not getting recognized or used properly, crashes). All of these I've experienced both historically and during the past month. Neither Ubuntu, Arch or NixOS, all on three different laptop models, have been free of show-stopping issues.
When a customer wants to use Zoom for a call, it's been about 50/50 that we can do the call without issues.
I just find it suspicious that all the top comments are "it just works" when my experience has been the complete opposite, in various environments.
So far Google Meet and Whereby (formerly Appear.in) have been the least hassle-free in my experience (probably due to being web-based). Looking forward to trying Jitsi when I have the time and inclination, it looks really promising.