Notifications alone are a legitimate use case that isn't always spammy growth hacking BS. It would be great if the notification story was better with PWA, but it just isn't on Apple and even on Android the well has been poisoned enough that no one is turning on browser notifications even if they legitimately want to be updated.
We're considering building an app pretty much solely due to notifications, because our only option currently is e-mail and deliverability while good can never be perfect.
AFAIK the web push notifications are already implemented with iOS 16.4
They just have to convince the user to add their PWA to the phone home screen. I guess the issue is that users hate being instructed to "install" "apps" which don't need installation to function.
We're considering building an app pretty much solely due to notifications, because our only option currently is e-mail and deliverability while good can never be perfect.