(1) Office 365 Groups provide a complete collaboration solution that integrates experiences across applications like Outlook, Teams, and SharePoint. (2) Office 365 Groups are managed through a single identity in Azure Active Directory which populates group experiences across Office 365 apps. (3) Managing Office 365 Groups involves multiple parties as groups can be accessed through many apps and interfaces but are mastered by none specifically. Admins use PowerShell to centrally manage groups.