@oliphaunt It seemed quite interesting to me, so I took a look at the article. The study is well done and finds no statistically significant difference in infections between groups of people wearing masks and not wearing masks, however your conclusions are not based on the evidence brought up by the article. I'll point out the study was performed in Denmark in April/May 2020, so this is not really a new finding.

As the authors of the paper point out: "The findings, however, should not be used to conclude that a recommendation for everyone to wear masks in the community would not be effective".
In fact they point out that at the time it was rare for people to wear masks; thus the study shows that wearing masks in a place where nobody wears masks does not protect you significantly. However, it proves nothing about the infectiousness in places where everyone wears a mask.