I've been inspecting this topic quite a lot and I'm a little confused now. So, we have reasons not to use Signal, reasons not to use Matrix, there were also some claims about Session being a fraught. Briar is mostly activists related (not very suitable for daily use), XMPP lacks good clients and suffers from fragmentation of protocol standards implementation, SimpleX is too feature-incomplete (no UnifiedPush support, big battery drain on Android, very decent desktop client without any message sync). I can't say a lot about Threema or Wire, as I'm not very familiar with them.
So, my question is — is there any good private messenger at all? What do you think is the most acceptable option?
EDIT: In addition to my post:
All messengers have their flaws, I'm well aware of that. I was interested in hearing users' opinions regarding these shortcomings, not in finding the perfect messenger. I may have worded my thoughts incorrectly, sorry for that.
XMPP clients are fine albeit it all, as many as they are, slightly different as is the nature of the protocol. This just means there is value in contributing to existing clients, creating new clients, or embracing progressive enhancement (which most do for example with emoji reactions just being a quoted text reply & so on) & complete feature parity is a fool’s errand if you want an exensible protocol with diversity & experimentation in the community. With the broad exception of the Conversations Compliance, there isn’t a flagship client & instead the best ideas come to the most used or most innovative clients. I use Cheogram, Profanity, Gajim, Dino, Movim at different times (& would love to create my own). The protocol is stable, healthy, & ready for proposals for improvement.
If I compare this to the more-expensive-by-all-metrics-to-run Matrix, if it ain’t Element, you gotta problem since a vast majority of users are on it & using all of its features & no other client has anything near parity but are expected to have parity instead of allowing things to sometimes be gracefully missed or shown in a less than ideal manner as acceptable. This hurts experimentation. Good luck trying anything similar to GDPR when all nodes are design & required to duplicate all messages & attachments for all users to every server anyone in it comes from.
The only real gotcha is the same gotcha as Matrix when using multiple clients with double-ratchet encryption (ala Signal) is that clients will expire keys that haven’t been seen in a while & is hard to get both devices retrusting one another. Turning it off & on again rarely works & requires fiddling on both ends sometimes. I really should just use PGP for encryption more often…
XMPP doesn’t need notifications per se since it already has a connection to the client. Since it works for all other OSs to hook into this & display a notification, I don’t even want to know what restrictions Apple has on iOS that prevent such basic behavior. Apple digs its own grave here. What’s worse is I want to say “go get a Android phone, dummy” to a ‘normie’ but the stock OS on any Android phone is going to be on aggregate a worse privacy situation unless you would have to be ready to teach how to unGoogle it to the extent they would tolerate.