It's really hard to fathom how quickly things have changed in China in the past ~20 years. I haven't been there since early 2017 which doesn't feel that long ago, but I'm planning another trip there hopefully for next year and I already know to expect massive changes since then.
Meanwhile in my city here in Canada the fact that we have built a half dozen decent residential towers and put in some bike and bus lanes downtown since then is sadly good progress compared to a lot of cities on the continent. Truly just different levels of progress in China.
Would absolutely love to see some of these interviews if they are easy for you to share !