I've read all these before. Except for the Thailand sample, the other samples are very small and subject to significant error.
Note that according to the best-case scenario in the study, there is only a 70% reduction with multilayer cloth masks. What that translates to is widespread infection. The study also does not consider mask reuse. While a mask might stop viruses carried by droplets, like other studies, it doesn't discuss what happens when the droplets dry out and the virus is still on the mask.
The study also does not discuss the situation of aerosolized viruses, which has, in fact, been included in other studies, at least one of which I've seen was done concurrently with masks. That study showed that masks are useless against aerosolized viruses, and there are other studies showing the the virus is more aerosolized than previously thought.