MediaSession is not updated when audio focus is temporarily lost
For example, switching to Facebook short videos. UAMP app: music paused, notification keeps showing the pause button(like it's playing at the moment).
In other cases I'm ok with setAudioAttributes(audioAttributes, handleAudioFocus = true)
but there is no way to handle this case.

my notification is fully handled by com.google.android.exoplayer2.ui.PlayerNotificationManager

For example YouTubeMusic app updates the notification button and shows "play" button when focus is temporarily taken by facebook. The same issue when receiving a phone call.
Android Auto buttons work the same.

Event EVENT_PLAYBACK_SUPPRESSION_REASON_CHANGED is not helping