Recently I talked to Genius bar about how my iPhone has problems setting up the wake up alarm (sometimes it doesn't set or clears itself) and how this issue has persisted across iPhones and iOS updates. Their answer was that I'd have to wipe and restart as new (essentially deleting my backup).
More insidious issues are the non-cloud alternatives to Apple features such as local sync and backup, which seem to be getting neglected as they try to push users to increasing expensive cloud storage and cloud offerings. Syncing photos and doing backups to a computer has been super buggy, but also severely lacking in basic functionality such as choosing an alternate disk for iPhone backups... Most people don't have 512 gb of free space on their primary computer drive and if they don't they cannot backup their iphone to an external storage.
More insidious issues are the non-cloud alternatives to Apple features such as local sync and backup, which seem to be getting neglected as they try to push users to increasing expensive cloud storage and cloud offerings. Syncing photos and doing backups to a computer has been super buggy, but also severely lacking in basic functionality such as choosing an alternate disk for iPhone backups... Most people don't have 512 gb of free space on their primary computer drive and if they don't they cannot backup their iphone to an external storage.