This metric lists all Windows virtual machines that have a null licenseType property. A null licenseType property indicates that the Hybrid Benefits are not applied to the virtual machine. This presents an opportunity for cost savings by providing license coverage through another means such as CSP (Cloud Solution Provider) or SPLA (Services Provider License Agreement) with software assurance. By identifying such virtual machines, organizations can take steps to optimize licensing costs and ensure compliance.See the following link for restrictions, limitations, and/or more information: https://learn.microsoft.com/en-us/windows-server/get-started/azure-hybrid-benefit

VirtualMachines[?properties.licenseType==null && properties.storageProfile.osDisk.osType=='Windows'].name