I asked for studies, not news articles, as finding the studies themselves when they aren't linked in the articles is fairly annoying.

But for example, the Zhang/Molina PNAS paper that you claim to have "seen yourself" (while linking to a press release about it and not the study itself) is likely to be retracted following a huge number of scientists critiquing its obviously preposterous claims and ridiculous methodology: https://www.buzzfeednews.com/article/peteraldhous/mario-molina-coronavirus-face-masks-pnas

Here's a twitter thread about it (blue check by one of the signatories of the letter calling for retraction) explaining some of the issues and the academic misconduct that led to the study being published: https://twitter.com/BillHanage/status/1273659736760737793

This was a big controversy in the science community and many articles have been written about it.

Your third link links to the same study, so see above.

The lancet metastudy which is the only other linked paper uses only "observational" studies for other illnesses to infer whether or not mask use could help, but they underscore that N95 respirators are the only type of mask that shows a significant effect (i.e., surgical masks do not). All studies in this dataset are about PPE use by hospital workers in hospital settings, so it's basically impossible to extrapolate them to mask use by the public, mask re-use or cloth masks.

Can you link me to specific papers that you see "proving" that masks (any kind of mask) work for the general public in a pandemic scenario? I'll wait.