There’s evidence of this but there’s also evidence, plenty of it in fact, showing the virus is transmitted via the droplet route. Contact with infected surfaces is also a transmission vector. Remember when the scientists demonstrated they could keep viable viruses on various physical surfaces for days at a time? Well, it hasn’t been shown to be a major transmission factor. Show us where ‘medical professionals,’ have proven covid is all airborne... For now it looks to be a distant second after the droplet type.

So the virus doesn’t travel as an isolated particle. The natural environment, oxygenated atmosphere, sunlight, temperature, etc., would quickly disable the thing. It is essentially always piggybacking on some sort of droplet, be it aerosol sized for the airborne route or larger for the droplet type. Masks can catch these. Of course some will get through. The idea of masks was always to reduce.

As to your condom example, a condom with pinholes is still better than no condom at all in limiting STDs and unwanted pregnancies.

Lockdowns have been definitively shown to be ultra highly effective in reducing transmission; (and IMHO a cure worse than the disease).