https://www.reuters.com/investigates/special-report/usa-covi...For example.
The big difference is that China hoovers up a lot of information from cheap security cams and online appliances in the West, and I'm fairly sure the West doesn't do that to China.
As far as media management, PR, propaganda, whatever, I don't see a lot of difference between the regimes. The West profiles its own citizens for both commercial and political ends, and so does China.
The US doesn't want a state propaganda outfit monopolising "entertaintment" access to its under-35s? Fine. Whatever.
Meanwhile Russia hasn't had a problem buying the GOP and on-siding tech oligarchs in the US, and TikTok is a footnote compared to that.