I did put one on a while ago with the same problem but done some checks and this is a bit different.
If my phone is just left turned on (no always on display) just a blank screen.
I get a notification i get no sound or anything from (ebay/amazon/e-mail/and other apps) but works on phone calls and text message.
...But if i pick up the phone and the screen lights up (it is still locked) just screen on i get all of them come through.
No app is causing a problem i can see and it did the same on s10 and friends s10 plus but my iphone is spot on just notification and screen lights up and thats an old iphone 6s.
I do hope some one can help as im missing so many things off emails or say delivery times off ebay/amazon and other stuff.
If my phone is just left turned on (no always on display) just a blank screen.
I get a notification i get no sound or anything from (ebay/amazon/e-mail/and other apps) but works on phone calls and text message.
...But if i pick up the phone and the screen lights up (it is still locked) just screen on i get all of them come through.
No app is causing a problem i can see and it did the same on s10 and friends s10 plus but my iphone is spot on just notification and screen lights up and thats an old iphone 6s.
I do hope some one can help as im missing so many things off emails or say delivery times off ebay/amazon and other stuff.