[tommit]

I'm not sure what you mean. Messages sync just fine between my iPhone and Linux machine.

> Horrible UX

It got way better in the past few years. When I did the initial push with my friends, we failed. Mainly because the basic functionality was buggy at times, such as messages that would simply not be received. But now it's running real smooth imo. Sure, there are a few things I would like to see. Polls is a big one. Maybe a smooth gif creation like WhatsApp -- but those are fairly minor. My experience is that it gets pretty much the job done and that's all I want from it. What exactly is so horrible about it in your experience?

> only thing: not Facebook & open source

Those two are pretty big positives, at least for me. That's pretty much exactly what I'm looking for.

> You can have all of that with a Matrix client

Well ... unfortunately that's a bit much for your average Joe, simple as.

[maxnoe]

No they don't sync just fine. A device cannot receive chat history from before it was added and signal regularly "forgets" linked devices, losing all messages on the device and starting from scratch after relinking.