This analysis of masks is correct. But the conclusions may overreach a bit.
Surgical masks work best but are designed to be disposable. Thats why it was a big deal when they were in short supply and healthcare workers had to re-use them. The masks with a vent hole are supposed to come with a replaceale pad that traps thing being exhaled. The pad is washable so can be rotated. That is why it has a slit on the inside of the mask- for replacing the pad. N95 is what it is designed for keeping contaminates out. As far as exhale - would it be logical that it would reduce the radious of the exhaled droplets.
Finally, Masks are a visual reminder to wash or sanitize.
That is wear some say there is a politically based motive. Personally, I don't associate COVID to any party or person. It is real and NY healthcare was in danger of being overrun. I hope people vote on what each candidate's platform says, and with both candidates in their 70s, the strenght of both the president and vice president. Either way the winner will be in office for only one term I suspect. <edit>
I wear my mask at bars and grocery stores. Not outside walking the dog (if you saw my dog you wouldn't want to get near lol), hikes etc. When I get to a Bills game this fall I will probably wear a mask there as well for atleast the first few games.