I want to know how china survive from gov crypto ban by using dex and dapps...and how to trade using dex and dapps ,are they the same with using cex like(binance,coinbase)..if i want to know about dex and dapps where i can be study,recommendation learning channel about that....review of current dex and dapps that ur guys are using

As far as I know, a lot of VPNs are banned in China now, so if they do find a good VPN, they would still need to find a way to transfer fiat for crypto and back. This could be done directly by cash though. As far as trading on Dapps is concerned, they can easily use something like trustwallet and an aggregator like 1inch (to find the best swap price). So trading crypto to crypto anonymously and decentralised is not a problem.