Hi... Are you talking about enrolling new devices into Intune or existing. If you are talking about existing aadj /aadr devices, this blog could show you how
https://call4cloud.nl/2020/05/intune-auto-mdm-enrollment-for-devices-already-azure-ad-joined/
If you want to know more how aadr devices could be enrolled and what takes precedence over each setting to enroll aadr devices into intune, this blog could also help you understand the flow
https://call4cloud.nl/2021/08/the-battle-between-aadj-and-aadr/
Feel free to reach out if you have any additional questions!