Many years ago my station of choice when driving to work started running an advert for car safety. The sound effect was a loud blaring car horn and the sounds of screaming tires and a crash. The first, second, third time I heard it was instant jolt of panic and left me jittery. I switched stations after the third time.
I use AlertManager and the push notifications available on Home Assistant companion app.
The push notifications from home assistant do me fine. AlertManager webhook to home assistant and a small automation to send the push.
Could use matrix but this has been perfectly fine for now.