@Conor Ennis
According to your description, I am confused that where does their word documents appear continuously?
Are these Word documents shown in OneDrive folder? Are they shown on Word Recent list or other locations?
I suggest you unlink this user's OneDrive account, more detailed information, please refer to "How to remove an account in OneDrive".
You could also refer to this article “Reset OneDrive” to reset OneDrive on MAC.
Hope the information is helpful to you. Any updates, please let me know.
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