I find this to be good info on Chyna:

China's lockdowns are making people want to leave, but that doesn't exactly make the CCP look good. So it's come up with a solution: ban people from leaving the country. In this episode of China Uncensored, we look at who's trying to leave the country, how the CCP is stopping them, and whether these lockdowns spell the end of the CCP.

https://www.youtube.com/watch?v=IyVNLOnse24