I don't think this is exclusive to China. Why would anyone trust any app from anywhere with any of their data is beyond me. Simply assume that anything you put in any app/website to be public and you'll feel a lot better.
Facebook is as likely to share all their data with their government as Tiktok is, simply the cost of doing business anywhere.
I get China is the bad guy and all that, but American companies are basically doing the same thing, they just have different ways of describing the process.
For example, WhatsApp (and Messenger) being E2EE by default(with confidence through audits) is completely counter to what a government seeking full public surveillance would want. Same thing with Apple's encrypted phones.
The government can't just waltz in and ask for the data as a) the companies can't help even if they wanted through the very nature of the in-built encryption b) the government can't threaten to shut them down without public uproar
They are slaves to their shareholders.
In China, I can't imagine Huawei/Tencent/etc refusing to help the government break into someone's phone or create a backdoor into an "encrypted" chat.
https://www.eff.org/deeplinks/2016/12/how-tech-companies-can...
I assume microsoft isn't big enough, because it was stripping encryption from Skype and making it centralized.
I agree. But tell that to the hundreds of thousands of teenagers who use the app as a major social media network. They don't care. It's all about the followers, likes and, for some, endorsement deals.