Everyone knows all the apps on your phone

I still, will never understand the need for native "Apps". To this day, I have never seen an "App" that couldn't simply have been a website/webapp. Most of them would likely be improved by being a webapp.

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.

During earthquake in Bangkok in Friday Grab (local superior version of Uber) helped me to order taxi and get my kids home. Needless to say that cell phones network collapsed for most of the day. All people want to know what happens and is their family and friends are safe. They definitely have very optimized network layer for poor connections. I bet they can switch to udp or something. I'm glad that it wasn't web app.

In many other cases I agree with you.