I don't have a source offhand but can attest that I too have seen some of that material - I consume a lot of reading material daily so not sure on where but can

I don't have a source offhand but can attest that I too have seen some of that material - I consume a lot of reading material daily so not sure on where but can say from recollection that it has critically contemplated the role of mask use from a couple different angles: 1) Are people correctly using masks - e.g. taking higher risks than the relative protection given by type of mask being used - just because you wear a bandana doesn't mean you should be hanging out in large crowds; properly wearing/fitting masks; properly disposing/sanitizing masks. 2) comparison of infection rates for other airborne/aerosol-transmitted diseases in countries/cultures where mask use is traditionally higher than the US, e.g. higher influenza infection rates in countries where mask use is traditionally much higher than US despite their success in containing COVID (taiwan, s. korea); comparison of sick rates of professionals who wear masks at work some of the time vs all day (Australian study of nurses, I think??); comparison of sick rates of people who wear veils when in public vs those that don't in same society. Sorry for lack of source material, but armed with above one might be able to google it out if interested. Personally, I'm starting to like wearing my largely ineffective-but-anonymizing sheer cloth mask in public. I wear a tight N95 on the plane, which sucks (effective PPE is NEVER comfortable to wear for hours), then junk it, but just try and tell me it doesn't help. I think smart monkeys should be staying home unless they have to be in public space. Strongly disagree with threatening jail time for mask noncompliance tho.