What does China have to do with anything in the post? Neither you nor the author would survive a trip to North Korea either, I don't see this as a valuable comment here - it's a complete non sequitur.
China is much more smartphone-centric than the US. QR codes are universal, WeChat and AliPay are the most common form of payments (online or in person).
Every point. Everything is an app, everything needs your phone number, everyone drives with their high beams on + every 10 second you get photographed by plate readers, everything tries to subscribe you, every app is full of ad splash screens + point systems, all fonts are mini/dense info overload. Oh yeah multiply this times 100x your expectation.
Edit: lets add my own boomer complain: everything is a video <3