Matrix itself works great. But the bridges leave a lot to be desired. Mind you, most of them are only in alpha or beta status.

But it requires a lot of fiddling around to keep them running. Some bridges just stop working without telling you and this makes it hard too rely on them. Always second guessing whether it's just quiet or the bridge went down again. The signal one in particular is bad for this.

I try it every year and it gets better but progress is slow.

Also, be aware that your fully bridged matrix server is a prime hacker target, it captures all you private Comms and can impersonate you. Much harder to do with all individual apps. This is another thing I worry about.

So for these reasons I just test it every year but never found it production ready.