If you are reading this, then you probably know what OneDrive Known Folder Move (KFM) feature does. It is like the old Folder Redirection, but the target is not file server, but OneDrive.
Here is an explanation of how OneDrive chooses names for Desktop, Documents and Pictures folders. And it chooses names for these folders based on the system locale configured on the system where OneDrive KFMis enabled.
So for example, if you enable KFM on system with Swedish locale, you will get Bilder, Dokument and Skrivbordet folders as mentioned here.
This creates a potential issue in scenarios where system local is different on computer where KFM is activated and for example on RD Session Host servers, if locale differs there. Then there will be in total six folders - two for documents, two for pictures and two for desktop.
One workaround for this is to configure PreferredLanguage attribute for AD user, sync it Azure AD and then user will have provisioned KFM folders always in prefereed language.