One of the coolest features in iOS 15 is Notification Summary. This new categorization by Apple uses machine learning and developer input to find and prioritize phone notifications based on their importance. This summary can then be delivered to you, based on the time of day you choose.
NEW Notification Overview – incredibly useful feature in iOS 15
Notification Digest lets you select and prioritize specific apps and contacts so you’re notified of their messages as soon as possible. But not everyone is a fan of notification digests, especially if you’re new to iOS. If you’re in the same boat, here’s how to disable or reduce notification digests on your iPhone and iPad.
Open the Settings app on your device and tap 'Notifications'.
Tap on 'Scheduled Summary'.
