Comment by jdauriemma

The answer is, you don't want those things. 95% of web applications shouldn't use push notifications, add to home screen dialogs or app loading screens. They're annoying.

Now imagine a world where PWA is substantially implemented across all major browsers. Given this scenario, let's pretend Mark Zuckerberg invented Facebook in that environment. There's the case for PWA - some apps are more engaging (for better or worse) with push notifications, home screen access, offline functionality, and optimistic UI updates.

Do I care if my favorite blogs have push notifications? No. Do I care if my favorite social networks and messaging apps have push notifications? Yes.