You don't even need to go study it. The linked article tells you all you need to know.

Also at issue is the practical matter of wearing masks. It appears that coercion is at the heart of the vaccinate or mask policy. Masks are extremely uncomfortable to wear for 12 hours a day continuously over a 4-month period. In addition, the requirement to mask serves to put psychological pressure on staff to comply and get a flu shot through the very real peer pressure and disapproval many experience from some of their co-workers.