Hi @Wanwan
Microsoft is currently promoting the “Add shortcut to My files” function, the shortcut of shared folders can be synced to local OneDrive folder.
But! There is a known issue, if you open a synchronized shortcut in Windows File Explorer, it will jump to the OneDrive online instead of an actual folder, besides, there is no Estimated timeline for the fix.
For more, you may refer to: Add and sync shared folders to OneDrive for home and Add shortcuts to shared folders in OneDrive for work or school
We deeply regret and apologize for the inconvenience that you had to face.
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