I have my doubts. For the cases of sworn statements I have seen, the people are not swearing on any evidence, but only that they hold a belief. Otherwise there is a trend of making public declarations but shrinking back from them in environments in which there are penalties for false statements.
I saw a clip from a Maricopa court in which a judge was asking for the methods of collecting affidavits. They used an especially questionable method, labeled as “concerning” by the court.
I tried to find the clip without comments, but could not. But this video starts off with the clip in question.