The Newer Fake PCGS holders are one of the latest Hobby Threats...
It doesn't help that they target good certs with no on-line images.
The latest deceptions hitting collectors and Dealers alike are under-graded genuine coins in counterfeit PCGS holders. Without getting into the specific "tells" here I will show images of a particular recent high priced example compared to the researched genuine one sold in a 2020 GC auction.
The lower grade coin in bad holder:
The genuine holder/ graded example:
The slabbed comparisons:
And the labels:
There have been others posted in this forum- it is truly a jungle out there ...