TL;DR
I have converted the below PowerShell one-liner into this batch file (the ^| syntax is to ensure the pipe runs within PowerShell, not within the batch file):
PowerShell 'Get-CimInstance -Namespace "Root\cimv2\mdm\dmmap" -ClassName "MDM_EnterpriseModernAppManagement_AppManagement01" ^| Invoke-CimMethod -MethodName UpdateScanMethod'
The why and how
Since I am a CLI person, and some Windows applications are only available on the Microsoft Store, I wanted to be able to initiate an update cycle from the command-line interface.
So I searched for [Wayback/Archive] microsoft store update all apps from the command-line – Google Search and found these to be valuable:
The Wiert Corner - irregular stream of stuff 