Miles Guo has some interesting things to say, unfortunately I'm fairly sure a large chunk of absolute nonsense is mixed in. And given how dark and impenetrable the CCP is, it's difficult to distinguish the two.
That RealSexyCyborg thread started really well, things people need to understand about Chinese consciousness, but then went completely off the rails with '5 million will die from COVID if it gets out' - this is basically rubbish, omicron is laughably weak and will kill exactly no one who isn't already quite close to death. Her complete lack of judgement about this is kinda shocking, presumably she spends far too much time on twatter.