So our group of enthusiasts in the office decided to switch to #Matrix for our lunch-coordination group. The signup process was... rocky at best. I received several error messages and had to redo the thing once.
Then when it came to selecting an app for it, the first one I tried was unmaintained, the next two both couldn't send encrypted messages, and finally I took the #Riot #Electron app.
So thanks again to all the people who have been pushing me to switch away from #Signal. Maybe in a year.