How to Delete Notifications in Bulk
#Notifications
You can delete unnecessary notifications in bulk.
▼ Select option_button.icon in the list of Submission Boxes > Select "Mark all as read".
https://scrapbox.io/files/646db63d5b80b7001c608013.webp
iPad and iPhone Can Also Be Done by Long-pressing the App Icon
▼ Long press on the application icon > select "Mark all as read".
https://scrapbox.io/files/646db6ba15f3db001c921ed1.webp
Reference
Notifications on iOS