"The study's lead author, Tom Jefferson of the University of Oxford, promoted the misleading interpretation. When asked about different kinds of masks, including N95s, he declared, “Makes no difference—none of it.” In another interview, he called mask mandates scientifically baseless."
When the main author is misleading about the conclusions of his own report, you have to wonder how good his work was.
But if you want just arguments over data rather than doubting Jefferson on a personal basis, this paper[1] makes a compelling argument that the RCTs in the Cochrane review itself are good enough to make the argument masking works. GAVI has also a good answer to Cochrane[2].
[0] https://archive.ph/FlApv [1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10484132/ [2] https://www.gavi.org/vaccineswork/yes-masks-reduce-risk-spre...