Does anyone know of any working alternatives? We use Zoom a lot, it has the most hideous UI and the worst UX but so far it's been the only video platform that reliably works with tens and hundreds of attendees.
You have a free, private, end-to-end encrypted, efficient, multi-participant video chat which allows screen sharing and shared document editing. It works on every modern browser, you don't need to create an account, and you don't need to install an app (except maybe on mobile OS's). It's open-source and you can run your own server.
[0]: https://meet.jit.si/