I know exactly what you mean. Just for general information, I've found another android client that I think it's better than Conversations. It's called Monocles chat (and it's on f-droid).
On matrix/xmpp I install the whatsapp bridge. I can convert a few close family members but no way everyone. For me it's an acceptable compromise. I get the close members to use my servers/apps, everyone else through the bridge so I can at least have all the chat in one place
The chat server (matrix and xmpp have different ones, but same functionality) that act like a whatsapp desktop client. Have you ever run whatsapp desktop client on your pc, where you have to pair it with your phone? Same thing, but you do it withing a special "bridge" (usually as a bot) in matrix or xmpp. So you get all the messages in one place.
But it doesn't work for calls, just for messages.
Gajim on pc (I use arch btw - well endeavourOS because I can't be bothered) and don't remember what on android (there is the full list or clients and capabilities on xmpp.org)
Yeah ok. First of all, because I can 😁. I mean z what's good being an IT nerd if I can't change stuff when I want?
Jokes aside, I've been reading more recently on matrix and looks like there are some security issues in the design of the app/protocol. I'm on mobile now, I'll look for sources when I'm on pc.
Also I don't like that it is a server centric system (so data is primarily on the server instead of the clients).
Also it takes more resources than I was expecting. For less than 10 users I can't have less than 4gb of ram (on a dedicated debian server, running docker) or it swaps so much it kills the system.
So basically I'm testing out if xmpp is a better system for those issues.
Tool