I just think the entire concept of desktop-targeted notifications is superfluous and thereby it doesn't surprise me that it is unpopular. Like, if I want a notification about something I probably want it to go to my phone; sure, it is maybe nice to also be able to browse my phone notifications on my desktop, but I don't need two actual "notifications", as it isn't like I don't have my phone near me 24/7: what I'd really want is the "notification" to happen on my phone and then let me remotely browse a synchronized list of notifications (preferably end-to-end encrypted to the running phone, not using a user) from my desktop... but registering for a notification only on my desktop--or even my laptop!--seems like an extremely niche value proposition.

iOS does not allow notifications by default. Apps must display a system pop-up to request permission to display notifications, and the option is there to deny permission.

Whether users have already fallen into the same cycle as cookie consent pop-ups and, more recently, GDPR pop-ups, just clicking "allow" by default because it's the easier option, is a different question.

Except the Android gives me significant more powerful to manage my notifications than say windows