@Premium user Thank you for posting your question on Microsoft Q&A platform. Happy to help!
From the information shared in the original post, I understand that you want to use Azure Migrate for VMware vCloud Director VMs by deploying Azure Migrator Appliance at vCenter Level.
We don't have any documentation regarding supporting vCloud director, and I never tried myself so not sure. If it is only testing then you may try to perform the test and see if that works, but most probably, it is not supported. However, if you go with the agent approach it will work since we "don't care" about the VMware environment.
Hope this helps. Feel free to reply if need further assistance.
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