iPhones support PWA notifications finally?! I always cited this as a big and intentional limitation. Time to update my apps.

Yes.

https://www.izooto.com/blog/ios-safari-push-notifications

If you use standard web push, you shouldn't even need to update your apps. All you need to do is convince your users to install the app to their home screen.

That's what I figured, but I never setup standard web push because it wasn't worthwhile before.