I've been trying out Jitsi this week (a self hosted video conference service) and I'm very happy with it.
Mine is running on a cheap single core VPS with 2GB RAM.
Video chatting for hours with 5 other European hackers works well.
Why would you want to use something like Jitsi instead of Zoom or Microsoft Teams?
- it's free, open source and self hosted
- no login/register required
- no extra software needed, works in the browser
- no data or metadata being sold off