Delete device in Azure Intune, option to delete also in Azure AD
Regarding Azure AD joined Devices it would be a great help to be able to choose whether you also want or not deleting the same device in Azure AD.
A check box "Do you want to delete the device entry also in ADD (or Intune)" could be displayed in the message box that appear with "Do you want to delete the selected Device(s)"
Aaron Seet commented
Not just delete; the Retire action will also silently unjoin the device off AAD. But, the AAD-joined record will remain there (stale) in AAD, and requires manually deleting.