Jitsi beats everything. I've set up meetings with first-timers and total technophobes by sending a single URL. The UI and performance is no worse than any other contender like Zoom or Teams. Nobody I've connected with using Jitsi had any problems figuring the "intuitive" interface in a few seconds.

The URL can be an ordinary long string or random sequence like

http://meet.jit.si/somerandomplaceontheinternettomeetme

Remember though: meet.jit.si, like other WebRTC video conferencing tools is nothing but a coordination point/SIP, a rendezvous server that then connects you peer-to-peer via the protocol for 1-2-1 calls or a Videobridge for groups. Unlike Teams and Zoom though, you can set up your own, which is a significant security and performance value-add.