Back in the day I love the trillio or something like that client that connected a bunch of different networks together in a single app for the very reason you talk about. I wanted to chat with my friends, and others but some where on AOL, some on MSN, some on gchat, etc etc

So I could connect to all the networks from one app

Today the would connect Facebook, Teams, Slack, Whatsapp, signal, etc etc...

That would be the dream....