No - OneDrive is installed but no account has been created.  And AFAIK I never did use it.  Unless Fences defaulted to using it (I do have an Office365 account) and I wouldn't have known...(?)
I looked at the XML file in a browser - it doesn't have any links.
To be more clear:  I have the old C: drive available, which has AppData\Roaming\Stardock\Fences\Backups.  And have transferred that folder to the new C:, and then installed Fences from the web.  As noted, if finds the snapshots but most fences load without links.
--> IF I must switch back to the old C: drive temporarily, how can I save my Fences layout in some bulletproof manner, for transfer to the new drive?