After update on 26 March, nobody is able to hear me over voice/video calls. Update has a bug with microphone. I verified that no permissions are restricted for the app. Device: Nokia 6 (TA-1021) Android 9. Will restore 5 star only after this is fixed. I'm willing to ignore all the rough edges and still give a 5 star as long as the app puts my security first, and remains open source.