The Chinese super apps didn't really have government institutions on board, aside from the chat censorship aspect which was the main thing the government was originally paying attention to. In other aspects, the Chinese government and its regulators didn't initially get involved, and the rapid dominance of Alibaba and Tencent took them by surprise.

The super apps benefitted from a mix of rapid smartphone adoption, first mover advantages, weak consumer protections, and fierce competition with each other. It's probably that combination of circumstances that's hard to replicate, not the authoritarian country bit (there are lots of authoritarian countries that haven't fostered super apps).

The Chinese government was not entirely happy about the result; for example, the dominance of WeChat Pay and AliPay poses a threat to the state-owned banks, which are a major channel of government control over the economy. That is why the Chinese government has spent the last few years cracking down on the super app companies in various ways.