Hi, @David Moon
Thank you for posting in Microsoft Q&A forum.
It's suggested to approve apps in "Prepare Pilot" section, with the pre-pilot experience and with reports from the pilots, Critical and Important applications are to be reviewed to assign a decision for the Windows 10 Feature Update readiness. This needs to be achieved under the Deployment Plans.
Which third party website have you read? Did you checked below one:
https://systemcenterdudes.com/how-to-use-desktop-analytics-for-windows-10-feature-update/
(Please note: Information posted in the given link is hosted by a third party. Microsoft does not guarantee the accuracy and effectiveness of information.)
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