A bunch of people around the world used 小红书 for months when they were worried about a twitter ban.
They got the same version of the app that people in China got. I haven't seen any formal studies but my impression, at the time, was that Chinese people were far better informed about the US than Americans were about China.
Well you could say that every educated country is far better informed about the US than vice versa.
Well, yes, China doesn't have open media for its citizens. Chinese people will on average be less well informed about China, even accounting for the extent of Americans who choose trashy propaganda channels.
(reminded of ex-tech influencer Naomi Wu, who basically went dark with a post along the lines of "the police have told me to stop posting")