The only spyware you should be concerned about is that from your own country. That's the country that can actually do things against you with the information. What are you worried about "China" doing with your chats or metadata on which apps are open?
It's worse than that. All this China big brother talk is just a variant of xenophobia. It's a talking point they've been trained to slam their foreign "enemies" about without ever thinking about it at all of what the actual harm they're concerned about would look like.