Unequivocally it can and does happen. And, as I stated, whether or not it is a primary or secondary mode of spread is undetermined - although some studies suggest the latter. My GUESS (and it’s no more than that) is that it is less than chicken pox and measles level since those two are pretty near the most effective airborne spreaders - at least that I am aware of.

https://watermark.silverchair.com/ci..._rrj9MpRb8NrAg

https://hub.jhu.edu/2020/07/16/evide...s-is-airborne/

https://www.medrxiv.org/content/10.1...567v1.full.pdf