Earlier quoted context omitted.
You seem to be conflating "PWA" with the Safari + Home Screen integration that allowed users to add a web[site|app] (PWA or not) to the iOS Home Screen. Apple had to remove this to comply with the DMA. It's now the responsibility of alternative browser engine vendors to integrate with Shortcuts so that you can add PWAs and other web[sites|apps] to the Home Screen using your browser engine of choice. The additional be…
What are you talking about? With iOS 17.4 in the EU, you can no longer make a web app (PWA) that uses a full screen window with no browser ui controls. No longer use local storage for the web app's data, and no longer send push notifications and show badges on the home screen icon for web apps. Third party browsers can't add this functionality back. How do you expect them to make push notifications work with PWAs?
Are you sure? Go to https://sindresorhus.com/screenfull/, tap "Request", and you should see a full-screen website. Any [website|webapp|PWA] can do this with Safari. (Screenshot: https://imgur.com/a/CTWFPol) Third-party browsers using their own browser engines can do whatever they like.
> How do you expect them to make push notifications work with PWAs?
Third-party browsers using their own browser engine will have to create their own support for web notifications, just as Apple does for Safari. Presumably, they'll leverage the same infrastructure they use on non-iOS platforms.