This marketplace offer applies to Windows Virtual Desktop (classic), which doesn't support Azure Resource Manager Windows Virtual Desktop objects. To create a host pool for Windows Virtual Desktop with Azure Resource Manager Windows Virtual Desktop objects please see this tutorial.

Windows Virtual Desktop allows you to deploy and scale Windows and Office on Azure in minutes, with built-in security and compliance.

Windows Virtual Desktop includes the following benefits:

A multi-user Windows 10 experience, including compatibility with Microsoft Store and existing Windows line-of-business apps while delivering cost advantages.
The best service to virtualize Office 365 ProPlus running in multi-user virtual scenarios.
Provides Windows 7 virtual desktop with free Extended Security Updates.
A scalable service to deploy and manage Windows virtual machines, using Azure for compute, storage, rich diagnostics, advanced networking, connection brokering, and gateway.
Allows you to virtualize both desktops and apps.
Deeply integrated with the security and management of Microsoft 365.