>So at least for family chats, I'm also looking for a replacement. Needs to

>- be p2p
>- be independent of any of the monsters (google, m$, amazon, fb, tw, instagram and such)

Birds eye on p2p gives better chances of of avoiding censorship via p2p, but at the cost of securing all p2p end devices.
Of course somewhat mitigated by tendency of end devices synchronizing with central server in C/S setups ;-)
From the chances of avoiding snoops a C/S setup is better as only one machine needs to be hardened - but in case of big seller offers a ripe target by of few servers hosting oodles of comm threads.

What are your specific motivation angles ?