You're posting something supporting mask usage.
"Face mask use could result in a large reduction in risk of infection". Somehow turning that into "masks bad" because it's a low certainty finding (inviting further study to confirm) is silly bullshit.
"low certainty (our confidence in the effect estimate is limited; the true effect could be substantially different from the estimate of the effect);"
Here's the bit you need to pay more attention to: "the true effect could be substantially different from the estimate of the effect);"
But, again, feel free to link to any of your preferred research.
"We have a low confidence finding that masks work" is not the "high confidence finding masks don't work!" you seem to think it is.
> But, again, feel free to link to any of your preferred research.
I mean, I'd probably just link the one you did, as it supports my point here.