Alternatively, users without Windows Pro devices can still license Windows Enterprise for remote virtualization scenarios with the Windows VDA E3 or E5 license. Windows 10 Enterprise may be licensed through the Windows Enterprise per device license or a plan that includes it (more on later in the article).
Windows 10 Enterprise is an upgrade license to Windows Pro devices. Windows 10 Enterprise is a requirement for Windows 10 based Azure Virtual Desktops. Here’s how I understand things and I could be wrong! Azure Virtual Desktop (AVD) licencing requirements
Reading and understanding Microsoft licencing requires extra-terrestrial powers that I don’t have. This article details the Microsoft Azure Virtual Desktop and Windows 365 licencing requirements.