@Mohamed Hsairi ,
Welcome to Q&A forum!
Are you using OneDrive for Personal or OneDrive for Business?
> linking my different folders on OneDrive
<< What does the "link" mean? Does it mean creating a shared link or syncing folders on OneDrive?
To better analyze this issue, could you please provide more infomation or share some screenshots with us?
Here is an official article Choose which OneDrive folders to sync to your computer, please have a check.
Hope the information is helpful to you. Any updates, please let me know.
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