It's mind blowing how 3 years into a pandemic, we're just having the conversation about N95 and mask fit vs kn95 vs cloth mask. What a huge miss in public health. Should have been done summer 2020.
The most effective, cheapest solution was just to wear a properly fitted n95. Sure, vaccines good, retrovirals, yes, but this should have been done long ago. Given the airborne and aerosolized nature having a real mask would have gone a long way to reduce community spread. This was a known thing, not new science.
I think the issue is sadly political, once masks became a lightning rod, the idea of more mask guidance or more restrictive masks became a problem. Hard enough to get people wearing masks in the first place.