You posted a link? Oh, I didn't see it. You posted a link to a report referencing studies, not a atudy per se. That's ok, I didn't expect you to know the difference.
I only took the time to read the first referenced study from your link. All it says is that indoor air needs to be ventilated better, didn't see anything about masks. That actually lines up with the real science behind masks that has been well understood and documented for years. Masks don't do anything to reduce the amount of infectious particles in an enclosed space, therefore indoor air needs to be ventilated appropriately.