There's a pretty big difference in what UX "feels nice" to East Asian audiences vs Western audiences. This video provides some insight into why this might be:
https://www.youtube.com/watch?v=WSMFnJnY7EA
The comments make it seem like it's more a case of users tolerating it due to the apps usefulness. Interesting video though, haven't had any contact with Chinese apps, so that was enlightening.
Tolerance of bad UI because of its usefulness (or if it is the only available option due to approval process and/or lack of competition) strikes me as a time-tested approach in enterprise environments. I dread to imagine that, but in real life. Is that how it is for people in the most populous country?