I have to use Chromium on my laptop, if I use Firefox (82 on Linux) then video and audio stutters and it slows down my whole computer, particularly if I have many other tabs open.
My phone is running out of storage space and was never that performant to begin with: mobile Firefox is a bit sluggish even on normal sites, and web apps like Greenlight run as slideshows. I just about managed to get onto one of the all-hands meetings audio-only on my phone, but barely, and it was significantly worse than the performance of the Jitsi and Zoom apps under similar conditions to the point that I wouldn’t bother again except for testing.
Phone dial-in is really helpful here: if people can’t get on Zoom or Jitsi on their devices or their network connection isn’t good enough, being able to call in is a really useful fallback. I would encourage us to prioritise dial-in to be able to punt these gnarly compatibility & performance issues (as well as the accessibility benefits of joining by phone, which I see came up for Radical Routes as well).
EDIT: I remembered that the Agaric BBB server does dial-in, if we need any advice on the set-up:
CommunityBridge.com is a BigBlueButton server that was donated to Agaric and we host chatrooms for small groups at no charge and sponsor Movie/Discussion nights. I think of it as a way to introduce Zoom users to BBB really - it is a playground. It was our test instance of BBB and is on a shared server. We are in process of setting up a BBB cluster on a dedicated server and will soon announce it. We will be offering low cost BBB hosting for conferences and webinars etc. for up to 500 chatters. Right now we are working to provide phone call-in numbers and setting up the frontend using GreenLight. We just want to make enough $ to pay for the BBB server and any extra will go to sponsor people that cannot afford it at all.