Despite what many might think, everything doesn’t need to be an “app,” PWA or otherwise. Reddit is literally a message board, one of the earliest types of website. It doesn’t need my location — ever. Email works just fine as a notification, if I want it as a “push” notification, I could VIP-enable the notification email address in Mail. Does Reddit need my accelerometer? Or direct access to my camera or microphone? Or address book? Or graphics APIs like Metal?

Nope. It’s just a message board. Sell contextual ads for the different subreddits, don’t bother tracking people, and be done with it. Of course that would likely require a significantly smaller workforce.

In that case you'll be happy that learn that notifications on the web are opt-in instead of opt-out! :-)