I very much doubt you could use this with an average set of friends and family no matter how hard you try. You're going to lose touch with at least half if you insist that Jitsi is the only replacement you have to offer people for a chat application and you don't reach out to them using something they can read like email or snail mail or dropping by if you live close enough. (That's why I think GP took your post for potential irony.) Kudos to you if it works for you, but it's not a serious option.

I don't have a Facebook messenger and believe me that's bad enough without also ditching Signal because eww phone number, Threema because eww nonanonymous payments, Telegram because eww no encryption, Element because it's unstable and I don't think my mom (let alone my grandma) would be able to use that UI effectively, Briar which can fundamentally not support voice calls, Jaimi which is about as stable as Windows 95 at launch when I tried it (and this wasn't an early beta, it was called Ring before iirc, it's gone through years of development), Wire which runs on USA infrastructure and isn't focusing on consumers anymore, et cetera and so on and so forth. I've actually got most of these apps and it's already hard to find common grounds when literally everyone else has Facebook's WhatsApp and they're wondering why I'm being difficult if they're not techies or privacy nuts themselves.