“Can this be correct?”
No!!!
Everyone Biden Has Granted Presidential Pardons and Commutations
https://nymag.com/intelligencer/article/joe-biden-clemency-list-pardons-commutations.html
This looks like a description of Biden‘s recent pardons and commutations. I wonder about the other more than 6000 to get to the number over 8000 on the list. Perhaps that number on the list is a mistake.