> a properly fitted N95 mask is infinitely protective against an airborne virus
People keep saying "airborne" as if that's the only route of transmission, but we know there are three routes - droplets in the eyes, air that you breathe, and fomites that you eat.
Eyes and mouth are significant, and there's some evidence that these are more important than airborne transmission.
The swiss cheese model does not say "use masks, ignore the rest, you'll be okay". It says "here's a package of measures and if you use all of them you reduce the risk".