Just to play devil's advocate here -
in the current political environment, I don't think asking for a pardon is any proof of a crime whatsoever - just proof that you believe someone might drag you through the court system for no reason, costing you time and money.
Have no opinion on Fauci, just saying. Gorusch wrote a book - Overruled - about the problem that "lawfare" has become. Even if you are innocent and can prove it, the need to prove it in court is itself a punishment.