Buying & Selling ETH in Mainland China?

Has anyone here got some experience to share in terms of the availability of Crypto in Mainland China? Is it easy to buy and sell due to restrictions and regulations? Assuming you definitely need VPN to bypass the internet wall.

I've previously heard OTC are still running but government is cracking down on them as they are trying to stop people from buying and trading. If you are someone who is currently in China and dealing with crypto, would love to hear from your experience on how you do it! Cheers!