Well, if you’re really interested in more info, there’s a place online where free speech and discourse happen, and they often discuss this very topic. Here’s one such thread[0].

More seriously, see any discussion on Tibetan Buddhism, underground Catholicism, underground Protestantism, Islam in western China, Winnie the Pooh, letters found in Halloween decorations, Taiwanese airspace, forced labor, etc.

[0] https://news.ycombinator.com/item?id=26632065