Fauci is seeking to get a pardon for all possible crimes committed previously. I don't know if he is hoping to go as far back as the AIDS epidemic or if he only wants to focus on his behavior prior to and during the Covid Pandemic.
However, no one should see this as an admission of guilt, his paranoia is solely based on the fact that he believes, actually that is too strong a word, he is concerned, that Trump's DOJ will treat him the same way the Biden DOJ treated Trump.
That didn't sound right, he is concerned that the lawfare used in the last 12 months may set a precedent for further lawfare. Ummm, that still doesn't sound good.
Anthony Fauci, out of an abundance of caution and not out of paranoia or a guilty conscience, would like a blanket pardon for any crimes he may have committed in pushing for lockdowns based on social distancing of six feet when the science said three feet. He is also concerned about mean spirited and vindictive people that might come after him because they or their family members were forced into taking a vaccine that then caused them health problems or killed them.
It should give you a warm, fuzzy feeling when you see all these senators and high ranking government officials like Fauci pleading for a blanket pardon of all crimes they may have committed during Biden't administration because it shows that they do believe in consequences and are not ignorant of the law.