[the_mungler]

A PWA usually makes use of a few features, most commonly push notifications, local storage, and install to home screen. The last one allows a web app to open as if it's a standalone native app, basically only a web view with no nav bar.

It's these features that Apple is restricting to webkit.

[jansan]

Ok, thanks. But aren't all browsers webkit based on iOS anyway? Is this about other browsers or also about Chrome on MacOS?

[the_mungler]

That's sort of the point. The EU is requiring Apple to allow alternative app stores with all the same features as the main one. Originally Apple decided to remove these features from Safari rather than allow actual alternative browsers not based on webkit to have access.