I tried to switch from Chrome to Firefox a few months ago but I had a terrible experience using Hangouts with a customer for two hours. The Firefox degraded until a point of no return and that sucks when you are talking with a customer. I initially blamed the network but there was no signal of network issues.
So, you're saying Google's anti-competitive tactic of degrading and not supporting other browsers worked on you. Did you know there's a name for that tactic? Embrace Extend Extinguish.
Did you consider using another, more neutral video conference system?
I use FF for normal browsing and Chrome for Google based stuff that requires an account, like Gmail, YouTube, Docs, etc. Besides not having ANY performance issues with FF I think it is good practice to separate most of your accounts from normal surfing.
In Chrome: no problem at all.
We pay for G Suite so I don't expect to pay for another service. I love Zoom btw.
I'm not sure which is likely to be lower ranked at Google - Edge compatibility for all those end users for whom changing browsers is too difficult or Firefox where compatibility is probably easy but the users can probably figure out the message of "works better with OEM branded components (or browsers)!"