As many have noted, you can't tell from this site whether apple decided to remove an app from the China app store or the developer decided never offer it in that coutnry. Because of that, it's not useful for calling out censorship.

We do know, however, that Apple does certain certain apps and functionality on device for China. Censorship of the News app is one such example: https://www.larrysalibra.com/how-apple-censors-news-in-china