There have been glaring bugs/issues lasting ages in both MacOS and iOS. For years apple mail on iOS would always show 1 unread message in "all mail" for gmail. On my iPhone 11 pro (and the 6S i had before it) the camera app will sometimes only show a black screen and a freaking reboot is needed to get it working again. I've missed out on many moments with my toddler because of that. Multi-monitor support was so good…
You have a setting to whitelist a Group from your Contacts from Do Not Disturb mode so that they can always ring through. But there's no way to manage your Groups from iOS. It doesn't exist. You must have a Mac with iTunes, or whatever is used to administer the iFoo stuff these days to do simple CRUD stuff with contact groups. This is total nonsense.
The Bluetooth toggle button in the quick menu on iOS now doesn't switch Bluetooth off, it just switches it off for one day. NO!!! I want it OFF when I want it OFF, and I can be trusted to turn it ON when I want it ON! Make UI design that respects my choices!
Whenever I plug my phone into my car, it starts playing the same song from my library every time. It doesn't care if something else is playing in SoundCloud, or FB2K or some other app. It will stop my music that's playing, so it can go and load up this other song and play it. Why?
My five and two year old daughters always say "awww, the annoying song again??" Even a two year old can see that this is hogwash!
Everyone makes mistakes, but when things like this appear and persist, it's a signal that the brain has separated from the body, long ago...