@Rob Torquemada,Thanks for posting in Q&A.
From your description, I know you want to Migrate User Rights Assignments Policies to Intune.
Based on my research, we can create a Settings Catalog policy using your imported GPOs in Microsoft Intune.
Here is a link with detailed information you can refer.
https://learn.microsoft.com/en-us/mem/intune/configuration/group-policy-analytics-migrate
If there is any unclear, feel free to let us know.
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