What's crazy, is that they obviously just took the initial picture as a reference to make most of those videos...
https://www.nbcnews.com/science/cosmic-log/ufo-tales-just-keep-going-going-flna6C10403709
Once you see the first pic, the videos are obviously lazy fakes. You can't answer that it's an airplane, so the videos that have it zooming around look like 90s special effects.
That's not even getting into not just China's population density, but their cell phones and social media.
That shit would have went "live" by hundreds of people from all different angles showing the same exact time.and as soon as people saw it on their phones, they'd go outside and look.
If shit like this was real, it wouldn't take two weeks for people to hear about it. Wed know in like 15 minutes tops.