That Bangladeshi study has been thoroughly debunked.
Lots of other studies suggest masks make no difference for respiratory illness spread.
And excess death data makes pretty clear that there was never a spreading “Covid” virus, unless in a few targeted areas for a few weeks in early 2020, to go along with lots of killer protocols introduced at that time which could also explain the bump in illness and death (e.g., NYC stopping resuscitation for all heart attack calls).
Other than that...
How has it been debunked ? I didn’t realize that.