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There are two different OneDrive clients used to sync files directly from your computer, one to sync with your personal library on OneDrive.com and the other to sync with the Microsoft 365OneDrive or SharePoint libraries used in your work environment. The OneDrive client used for Microsoft 365OneDrive or SharePoint libraries isn’t available on a Mac.
You can save documents to OneDrive for Business or SharePoint from your Mac but to use the full client-side capabilities for OneDrive for work or school, like moving files between folders, you’d have to use a PC.