I can only speak for Japan, but I suspect China is the same. In Japan, English programming is the norm because all mainstream programming languages are written in English. Keywords, libraries and documentation are in English, so there's not really any getting around the fact that you have to learn to read at least some English. Some Japanese developers do write identifiers in Japanese where languages support it, and documentation / comments are often written in Japanese, of course.

I, personally, think this is a lamentable state of affairs that raises the barrier to entry for programming, especially for children. There are education-oriented Japanese programming languages that try to fill the niche for teaching children, but I think it would be beneficial if there were serious languages with a full ecosystem rather than ones designed to be training wheels before learning English programming languages.

The first STM32 "bluepill"-based SCSI to SD adaptor I ever used had all its source code in Chinese.

Google Translate did a not terrible job of turning all the comments into English but also mangled the code in exciting new ways, but with a bit of ingenuity to apply the Artificial Intelligence translations, and a bit of bloodymindedness when applying the Analogue Idiocy to hacking it all about with search-and-replace, I got a pretty plausible translation of it.

Nope, they just add huge Chinese comments.