Matrix is a lost cause. The protocol is too complex/ambitious and the company behind it doesn't have the resources to actually produce a good server nor client implementation. I was hopeful for it at first but at some point you have to be realistic.
What I do like about them is the zero server trust stand they are taking on their clients which makes migration a pain in the butt, but that is what one would expect from a true e2ee chat app.
And now they have two stable servers in rust. The French and German government including military are using the protocol to make their own apps. Maybe it should be something the EU should put some more resource into it?
Last time I checked, the Matrix servers had access to a lot of metadata. Did they fundamentally change it?
No thanks on that. I don't have time or energy for these things.