It was the protocol to use at 38C3 and I was interested to compare it to the previous incarnation I tested briefly for 36C3 in 2019.
The experience without a doubt was the most miserable exercise in how NOT to design a messaging application or UI I've EVER seen. It's......wretched, it's somehow managed to get WORSE since 2019. The instructions for are opague, the implementations slow and needlessly complex and the UI has bouncing around the screen for no discernible reason.
It's ludicrous, that the modern IT / Hacker crowd insists on it and/or Telegram as the preferred messaging choices while all agreeing that they are unanimously horrible or insecure.
I often see similar sentiments expressed, and then I wonder if they come from a different Matrix world than mine. Matrix is my primary chat, using daily. I'm in 100's of chatrooms hosted on federated servers (to be fair many on matrix.org), and using Element web UI that only has few unnecessary bells and whistles, unlike Slack and Discord. The UX is good enough and effective. There are frequent updates, mostly improvement but, yes, sometimes something breaks. But for that I have an all-FOSS and decentralized open standards based network.