Apple could certainly do more to help people understand that they can install web apps to their home screen. Right now, it is an option that few users are aware

Apple could certainly do more to help people understand that they can install web apps to their home screen. Right now, it is an option that few users are aware of, buried in the menus as it is, and even fewer think about it. When a related app is available in the App Store, Apple will show a big banner at the top of the web page encouraging you to install it... but they won't do anything for a PWA. I think requiring "installation" of a PWA is a great way to balance the concerns people have about getting spammed with requests to spam you with notifications you don't want... but I also wish Apple would support PWAs better in general, so I can see it both ways.