First: Deflection, pure and simple. You were trying to make a point about mask mechanics, and so the most pertinent response was always going to use a model to illustrate those mechanics. Bluntly, your response makes me strongly suspect that you don't understand the paper and were just looking for an excuse to dismiss it, and in the process you belied an unfamiliarity with how models are widely used across disciplines, epidemiology included.
This is only reinforced by your second point in which you quote "When the masks were placed in the manner in which the product is commonly worn, however, significantly higher numbers of particles were recovered" as a gotcha, when in fact that's contextually a critique of improper usage. To conclude from that that "masks don't work" is as false as saying "contraception being greatly reduced when people don't wear condoms correctly shows that condoms aren't an effective contraceptive" or that "improper use of seatbelts greatly reduces their efficacy in saving lives in car crashes", when in fact it says precisely the opposite: That the mechanism is quite effective, but that effectiveness is predicated on proper usage.
You might as well be pointing at a student who sleeps through class, doesn't study, and then fails the final to claim that the curriculum was 'obviously' deficient. Human error does not impugn the efficacy of the mechanism, and it's the mechanism is explicitly what you are disputing when you say that "there's no evidence that masks do anything."
And to your "I don’t really care about finding the data again"? Wow. Just wow. I just handed you the very study you were citing, not paywalled, the one you and Silvanus were arguing about not having access to...and your response was "I don't care"? Setting aside that you clearly either don't remember or never knew it's contents, what a thing to say that you don't care about having ready access to the very source you were actively discussing! You're functionally declaring that you don't care about referencing or verifying your claims, because you've already reached your conclusion and refuse to question it!
And then we get your "best mask studies". No, they really weren't. For goodness sake, the very source you claim to be deferring to doesn't even focus on "mask studies" but rather studies about the efficacy of interventions encouraging people to wear masks and, by its own account, had too many methodological errors to draw reliable conclusions from.
Bluntly, the way you responded and are treating my explanation of their own findings and conclusions as if they were instead my own criticisms makes me doubt that you even read the thing. You clearly aren't trying to understand them, you're just looking for an excuse to say that it doesn't matter and therefore they cannot even make you question your presumptions.
Let me reemphasize: Your evidence for your claim was that Cochrane said "there is no evidence that masks do anything". And not only does the study you're citing clearly not say that, Cochrane itself has publicly clarified that their review does not support the claim that masks don’t work. If your position relies on that misreading, it's built on a false foundation.
And to be direct, your conclusion is rather explicitly that no study can be trusted unless it already supports your view, that you don't care to even check your sources, and have shown that you will fight against their own clarifications and admitted limitations tooth and nail to maintain the conclusion that you are invoking them to support. You're all but bragging about your argument being nothing more than confirmation bias.