Hi nileshpawar4, My name is Jeremy, a Windows Independent Adviser. I'll be happy to help you out today. Let’s see what I can do.
I regret to inform you but, unfortunately, it is not possible to use PowerShell to install apps from Microsoft store as of this moment,
The Add-AppxPackage cmdlet adds a signed app package to a user account. An app package has an .msix or .appx file name extension. Use the DependencyPath parameter to add all other packages that are required for the installation of the app package. You can use the Register parameter to install from a folder of unpackaged files during the development of Windows:registered: Store apps.
In the meantime, please use the Feedback hub under your start menu and drop some comments and suggestions. Microsoft has always a room for improvement for the best experience of its user.
I hope this information helps
Kind regards,
Jeremy