I really wish their "2nd App Store" could just be the web. If they had some easy way to search for PWAs (on par with the App Store), and had better support for PWAs (on par with Android), PWAs could finally take off as the "write once, run anywhere" solution for apps instead of things like Flutter/React Native.
The elephant in the room here is that apple controls the browser and app store and therefore dictates limitations/experience pwa gives to developers/users.
