Nobody uses those, either, except possibly as required to interact with the cursed government PKI (about as cursed as early 00s EU government PKIs... are those still around?). Also maybe the government people with clearances, but the less said about them the better. But that’s mostly network effects, frankly, not trust. (Nobody uses Camellia, either.) Trust issues as described by the GP do exist but mostly factor into choosing domain names, registrars, hosting, and such.

But China, unlike Russia, does have an internal technological environment meaningfully separate from the world at large. It may also be trying to cultivate an ecosystem of private government contractors, which the intense criminality of Russian government procurement doesn’t permit. (China also has a general-purpose IC fabrication industry worth a damn, whereas for Russia the equivalent question is in any case largely moot.)