Over 20 we know.
But how many more over no one knows. It's pure political bullshit. One word justifies all the pardons: Insurrection! When governments push lies like that for political prosecutions and purposes it affects far far more than some few poor cops that might get mixed into it, it affects all 330 million Americans, hell, the whole world of 8 billion. Think of how many dead from Bush WMD lies. Hundreds of thousands.
And Trump granted the pardons only after Biden gave immunity to the entire J6 committee, all of their staff member sand all the cops that testified inclduing that one. So stop.