What feature needs to be enabled on the host pool to use the Start VM on Connect feature?

To use the Start VM on Connect feature within an Azure Virtual Desktop environment, it is essential to enable this setting at the host pool level. The Start VM on Connect feature allows virtual machines (VMs) in the host pool to automatically start when a user logs into the Azure Virtual Desktop. This enhances the user experience by reducing wait times and ensures that VMs are readily available when users need to access them.

Choosing the host pool, denoted as "Pool1," is crucial because it refers specifically to the group of VMs designated to serve the session hosts for user connections. This setting cannot be configured at the individual VM level or at other higher-level infrastructure components such as resource groups or data availability groups; instead, it is an inherent feature that must be set up for the pool that manages the lifecycle of the VMs involved in providing desktop and application sessions. Therefore, enabling this feature directly associates it with the user access point and optimizes resource utilization while enhancing the performance experience for end users.