All that you have described about the same China - do you think that this will remain only within its framework? The point is that it is not  «welcome to China» but «welcome to the future» where money will really cease to exist in physical form. Where it is really necessary to have a certain basic set of applications for successful communication with the world. And Yes, where you will be asked to provide documents at any time and for refusal you will be immediately taken to the police station.
And let's not build illusions-cryptocurrencies are just as much a part of this world as messengers or government services apps. Moreover, this is the same side of the coin only with a different sauce. Do you think the governments of different countries will always put up with the fact that they can't control something?
No, this is not even welcome to China but welcome to cyberpunk