Hello Charlie Harrison,
Unfortunately, there is no configuration policy available as of today to support this configuration.
Please raise a support ticket: Get support in the Microsoft Intune admin center | Microsoft Learn or submit your feedback:
Onedrive: https://feedbackportal.microsoft.com/feedback/forum/e3f04660-2c1c-ec11-b6e7-0022481f8472
Intune: https://feedbackportal.microsoft.com/feedback/forum/ef1d6d38-fd1b-ec11-b6e7-0022481f8472
Hope this helps!
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