Earlier quoted context omitted.
I think that’s naive. China can just arrest you for using encryption. Same result. (This isn’t limited to China - the US could have similar results with slightly differing laws)
Enter: steganography. Useful under totalitarian regimes, I would think. Unlike the burden required to hide gigs required for large file transactions, hiding mere hundreds of bytes for textual conversations might be feasible. Maybe. Distribution of participating client software might be the problem.
[0] https://www.wetstonetech.com/products/stegohunt/
[1] https://www.wetstonetech.com/corporate/channel-partners/