Hybrid Azure AD join and co-management

Hybrid Azure AD joining a device is a device identity scenario, which has your device joined to the on-premises AD DS domain, and registered in Azure AD. This is a good scenario when starting your identity and security migration from on-premises to the cloud.

Co-management is a device management scenario, which has your device being managed by both Configuration Manager and Microsoft Intune, with each being the management authority of specific workloads.