The only benefits I can see of "Apps", are the developer get's access to private information they really don't need.
Yeah, they get to be on the "App Store". But the "App Store" is a totally unnecessary concept introduced by Apple/Google so they could scrape a huge percentage in sales.
Web browsers have good (not perfect) sandboxing, costs no fees to "submit" and are accessible to everyone on every phone.
Normies don't turn off notifications. Over the last few years all my relatives have picked up smart watches, (thanks to cell carriers upselling them hard during phone replacements) and in any given conversation at family events they'll be glancing at their wrist every 100 seconds.