Just a reminder: the condition for accepting a pardon is acknowledging that you did commit the crime in question and accept the court's finding of guilt.
In contrast: Biden didn't pardon Leonard Peltier, the president commuted his sentence. Peltier maintains his innocence.
Do you have a source for that condition? How does that work for Biden pardoning Fauci for crimes that havent been revealed yet?
Can you share more about your first point? A brief search shows the 1915 Burdick supreme court case said that accepting a pardon can imply guilt. However, it doesn't seem to say that acknowledgement or acceptance of guilt is a requirement by the recipient of the pardon.