Hi,
Thank you for posting in Microsoft Q&A forum.
Per my experience, the MDT and ConfigMgr integration has no impact on the operation of MDT itself; your existing setup would be unaffected. The integration just adds the MDT step types and wizards into the ConfigMgr console. When you integrate MDT into ConfigMgr, you are just adding features and capabilities of MDT into ConfigMgr.
Thanks for your time. Have a nice day!
Best regards,
Simon
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