Ask HN: Recommendations for free, easy in browser video meeting rooms?

I'm in France in quarantine, as are a lot of friends. I'd love to have a space where we can pop in and out of a video meeting – ideally a URL that's always available, where we can drop in and see who's online. It'd have to be free and ideally in browser so it's easy for everyone to use.

Does anyone know if this exists?

I'm sure I've seen a bunch but can't remember any names.

Thanks!