Explanation
Microsoft Compliance Manager (Preview) is a free workflow-based risk assessment tool that lets you track, assign, and verify regulatory compliance activities related to Microsoft cloud services. Azure Cloud Shell, on the other hand, is an interactive, authenticated, browser-accessible shell for managing Azure resources.
References:
https://docs.microsoft.com/en-us/microsoft-365/compliance/compliance-manager-overview
https://docs.microsoft.com/en-us/azure/cloud-shell/overview

Explanation
You can move a VM and its associated resources to a different subscription by using the Azure portal.
Moving between subscriptions can be handy if you originally created a VM in a personal subscription and now want to move it to your company's subscription to continue your work. You do not need to start the VM in order to move it and it should continue to run during the move.
References:
https://docs.microsoft.com/en-us/azure/virtual-machines/windows/move-vm