There’s very little that doesn’t scare non tech people.

Revolt is probably the closest fit https://revolt.chat/

I heard Element just added screensharing

I signed up with Matrix and it was not seamless but maybe a private server would be great and they could go from there (but that feels like a long term commitment to supporting those users). I haven't really played much with it. Tried getting the folks in my discord server to give it a try but they haven't and they are tech folks. I would say it's not ready for normies, but I really wish it was.

I still have it installed on my phone, but I don't really have anywhere interesting to go. Same with Signal TBH—it's installed but no one I know uses it. Still waiting on my invite from the Secretary of Defense.

I believe i can self-host a matrix client but no idea how well it will work with people currently having notifications by discord bot on their phone

In my opinion discord is not yet enshittified enough for these problems to be easily solved. Give it a couple more years, if matrix gains just a bit more traction, the scaffolding to do stuff like that will be worked out.

Keet is pretty cool and (granted I am a tech person) is pretty dead simple to use.

Never left