I've been using Jitsi and Google Hangouts for years, and in terms of reliability/quality, I can't really tell any difference. Haven't used Zoom much.
The nice thing about about Jitsi is it's the most simple process I've seen: just tell people to go to a simple vanity URL (URL you get to design) and that's all. I sometimes find Hangouts confusing with all the invitation, accepting, etc.
For people I videochat with often, I just say "jump on Jitsi?", then start typing in URL bar which autocompletes and boom, we're chatting