I think I know the answer to this question from my experiments, but I haven't been able to find a definitive answer when doing research.
Is is possible to send notifications to a PWA when it is opened in Chrome on mobile, but isn't installed?
Once it is installed I can receive notifications, but I can't before.
I'm having a hard time getting remote debugging working for my mobile so it's difficult to tell if the push event is even firing.
question from:https://stackoverflow.com/questions/65645057/can-service-workers-receive-pushes-when-not-installed-on-mobile