KDE Help Center only displays English documentation regardless of the current locale. I've already fully translated Elisa and wacomtablet for a very long time, but their documentation never showed the localized version, only the application themselves are localized. I'm using Manjaro KDE Plasma 20.0.4. Simplified Chinese locale.
We also have fully translated Konsole's documentation for a long time, it is still English only this day.
It works at least for Italian. Just to be sure: does Manjaro fully ships the translated documentation under /usr/share/doc/HTML/<lang>?
For some reason, Simplified Chinese cannot be found in that directory. I never installed Japanese/Korean, but they both have their folders there, but each of them has only 1 or 2 subfolders and that's it. I don't think they have the proper translation there either. How may I found out whether it was not installed, or simply just a bug in the packaging?
There's no docs folder for zh_CN, translating docmessages is not enough you need to run ./scripts/update_xml zh_CN regularly to regenerate the docs from docmessages. Please contact the kde-i18n-doc mailing list if you have questions about that.
Alright, thanks for the info!