Does the iOS/iPadOS version of safari support push api standard with service worker?
iOS 12, 13, and now iOS/iPadOS 14 still doesn't support these features:
So many requests from the community for these features but Apple don't want to hear it. Maybe they think these features have a bigger chance to be unnecessary exploited(spam, etc). And also maybe they want to force developers to create the native application rather than the progressive web application.