Google is running a test of not displaying the normal site’s snippet in the search result page if Google shows the URL of the featured snippet. Generally when Google displays URL of the featured snippet then it will show the exact same URL on the first page of the main listings.
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Google is testing of drop ranking to those URL who has featured snippet. It will not allow the users to have the double advantage of the ranking and featured snippet both.
Tweet By Kieron Hughes:
Example: Legal & General in the featured snippet, and their actual ranking URL has been removed from the SERP entirely pic.twitter.com/Zy17NazLkf
— Kieron Hughes (@kieronhughes) November 12, 2019
Probably a more logical thing but yes means you don't get two bites of the cherry 🍒
— David Iwanow 😷 #WearAMask #PfizerVaccine 💉💉 (@davidiwanow) November 12, 2019