Notification sounds with headphones are broken and will damage users ears

There is no way of fixing the notification loudness on the iphone with headphones. It's annoying and dangerous. If im listening to music at a high level, the message notification comes through at ear blasting volume. I tried going to sound and haptics and changing that slider but that only works for the iphone speaker, it does not work with the headphone.

THIS HAS to be fixed. Its dangerous for peoples hearings. I dont want to put my phone on do not disturb every time I listen to music. I dont want to have to remember to do so, so that I dont blow my ears out. Make it so I can control the volume on the iphone notifications independently from the rest of the audio. I mean, microsoft has this built-in...c'mon.

it's downright negligent and dangerous that this has not been addressed by apple.