Jitsi Meet and Matrix are missing system-wide/background push-to-talk (PTT) (to replace Discord).
Tell Jitsi -> github.com/jitsi/jitsi-meet-electron/issues/210
Tell Matrix -> github.com/element-hq/element-web/issues/15284
Tell Element Call -> call.element.io (Settings > Feedback)
Tell SimpleX -> github.com/simplex-chat/simplex-chat/issues/2398
Alternatives?
Jitsi, Matrix and SimpleX are cross-platform.