Start by installing the PolicyPak PowerShell module, found in the PolicyPak Extras Folder in the DOWNLOAD…
The PolicyPak PowerShell modules are installed to:
C:\Program Files (x86)\PolicyPak\Tools\Modules\PolicyPak.
Then with a Powershell prompt perform the following commands:
An example output can be seen below, which returns all the GPOs and which PolicyPak Client Side Extension data types are inside them.