Since mask wearing etc. keeps being brought up (Both in "beating a dead horse", or the opposite that no one is looking at it). I am sure many over the thousands of pages here have pointed to various articles on the subject.
For those who have not had the time to read all the pages, here is a very recent, nice narrative review on face masks published by The National Academy of Sciences of the United States of America.
You might say it is a Cliff's note on the subject.
The science around the use of masks by the public to impede COVID-19 transmission is advancing rapidly. In this narrative review, we develop an analytical framework to examine mask usage, synthesizing the relevant literature to inform multiple areas: population impact, transmission...
www.pnas.org
Myself I do not care if it is as effective or less effective than the general scientific consensus. I been wearing one when not alone or when I am not with fully vaccinated people indoors. Outdoors I wear it when people are in proximity. I do not like wearing masks, but honestly the inconvenience of mask wearing is only temporary.
I will wait till the numbers of cases declines and mask wearing is optional before not wearing a mask in the appropriate circumstances. (Even if the mask are or are not effective)[The evidence in my opinion is that masks are effective for the unvaccinated, and we do not have the research done to know how much mitigation it is for the vaccinated [So I generally will err on the side of mitigation].
Now if you want a meta study that factors in mask wearing through last summer. A January 2021 lancet study can be found here (Has pretty graphs too).[But correlation is not necessarily causation]. The percent of the population that wear masks is lower than I thought (But that was the summer, not now)
The widespread reported use of face masks combined with physical distancing increases the odds of SARS-CoV-2 transmission control. Self-reported mask-wearing increased separately from government mask mandates, suggesting that supplemental public health interventions are needed to maximise...
www.thelancet.com