I have had quite some issues recently with TTS just disconnecting mid-flight, and when that happens it becomes difficult to notice incoming ATC messages unless I stare at the screen all the time.
I am proposing a better indication that is more visible, or simply audible. Examples would be a vibration, a ding or similar sound, or showing the message in the same way as the “You have been tuned to XXXX ATIS” message.
P.S. I am aware there is a similar topic but that was from 3 years ago and has no votes.