Is just such a shock from being in China. Just got harassed and essentially threatened for being a socialist. They searched my bags and commented on my China flag and my little red books and my copy of Blackshirts and Reds. Fucking police state. The security in China is strict, but they don’t give a fuck about your thoughts, whereas this guy was very aggressive about “consequences” for being a socialist.
Not just infrastructure, payments are also convenient with Ali pay/WeChat pay. Everyone pays everything by phone, most haven't used cash or card in years, although you can if you want. Apps are also ridiculously well designed and integrated, less visible as a foreigner, as much if it is obviously in Chinese and you have a language barrier. But you can really do anything you can imagine in WeChat. Alipay can also translate in miniapps. Say you are in a restaurant, you will scan a qr code on the table, can have a menu that you can automatically translate if you so chose. You also can order and pay through that menu on your phone.
Bureaucracy exists like everywhere else, but tends to be faster and more efficient in my experience. It's not perfect, but the country does feel very different.
Also, it doesn't depend that much on the city. I have been to most large cities in China, many small and medium sized ones too. I have also been to the countryside. The latter is more relaxed, but everywhere has technology and infrastructure. Basically all cities are serviced by train. Towns will all have bus systems that mean you can get anywhere in the country with public transportation.