However, previously you got an exemption on the 7 day TTL on Web Storage, by being installed as a PWA. This must have been too generous. I guess they figured that if you combine lack of stable local storage, with no support for the Background Synchronization API, nobody should be able to implement anything of value on top of these APIs.
And just in case this isn't enough, let's just hide the install option even deeper than before. On iOS the path is now something along the lines of
1. Tap site's domain name 2. Meatballs menu 3. Share 4. More (Meatballs again) 5. Scroll until you find "Add to Home Screen" 6. Leave "Open as Web App" switched on 7. Add (upper right corner)
There is no obvious install prompt, and no clear browser level affordance. Nothing in the flow even tells you if PWA functionality is supported by the website. You might end up with just a weird shortcut that opens a URL full screen.