One thing to consider in regards to "developing" places - most people in Africa and India get their internet from SmartPhones/Mobile devices. Reason being: power, mobility, and that in many places, the phone company in many locations acts as a "western union" for their areas... including bill pay/wire transfer and digital wallet. This is due to everyone has phone bills/minutes/data to purchase - as well as mobile purchasing with barcodes/SMS, etc...
They don't really "Netflix and chill" but when they do, you're likely to see multiple screens occurring and they'll still be on mobile or wifi.
So 4G/5G will be of greater benefit to crowded neighborhoods which there are a lot of them there.
Backhaul could easily occur over the LEO satellite constellation since it will be a long time before you'll see Africa and most of Asia needing constant signal coverage.
It's a mistake to think that everyone uses the internet the same way as people thinking that we all use our cell phones the same way.