I havent seen any evidence of this.
Anti mask is associated with anti science and anti vax type thinking.
Public health folks, research, and the majority of scientists are suggesting mask use. The preponderance of evidence is that they are effective at slowing down transmission. I agree on the not magic thing. Its amazing thats it october and this is still being politicized. It's ****ing exasperating and people's lives are on the line.