There are tons of things that are extremely popular and completely unavailable without an app companion. The majority of the most popular services cannot be used web-only.
I can recall in 2007 when even having third party apps was a debatable topic. Call me fogeyish but it's inarguable that this was not really the intention of iOS, rather, we have mitigated and papered over the problem due to insane app store popularity. Macs didn't have native notifications for decades.
In other words, our priorities have drifted significantly and it may be time to holistically reevaluate this.
iOS 15 introduced notification filters and notification summaries
iOS 16 doesn’t even show notifications on the Lock Screen unless the user explicitly asks to view them (there’s just a small “view notifications” button at the bottom of the screen). Further, the Live Activities widgets will eliminate a lot of the notifications sent by apps like Uber.
If the trend continues, iOS 17 will further hide notifications.
Perhaps this is why Apple now feels comfortable with web push notifications.
A majority subset of users want their phone to buzz when their packages ship or are delivered, when their delivery food is about to arrive, and when their paycheck hits their checking account.
Notifications as a concept are here to stay. Allowing every app limitless access to the same type of notifications is not.