I have a uncle with a similar situation. He ended up getting him a smart watch. I don’t remember which, but the search was for the strongest vibrate he could find. The phones vibrate didn’t do the job, but he feels the wrist vibrate.
He also is used to wearing a watch so he feels weird without it and there fore doesn’t forget it.
Maybe that could help you.
earphone843@sh.itjust.works 2 days ago
Get a smart watch. I have adhd and rarely register notification tones, but my watch vibrating usually gets my attention. You can usually control what apps get to send notifications to it.
I have the garmin instinct and love it, but I do a lot of outdoor activities.