The Microsoft Intune Company Portal is the website address that IT staff and / or users go to for device management. The address is below. Intune is used by IT staff to reset devices entirely to the factory configuration, reset device passwords, manage apps, obtain BitLocker recovery keys if needed, and to check the status of a device. There is more, but the portal is the starting point after the foundational Intune requirements are in place.
A key point made on the Microsoft Learn website is that both enrolled AND non enrolled devices can use this website.