Every time I offer to "get on a screenshare" with colleagues, Microsoft Teams marks "screenshare" with the dreaded red squiggly underline. I note that (as of August 31, 2023) the Merriam & Webster online dictionary does not have an entry for "screenshare", nor does the Oxford English Dictionary, nor Cambridge Dictionary, nor even Dictionary.com.
I also see that Merriam & Webster indicates that words get added based on the prevalence of usage; the more "screenshare" gets used, the more likely it will be added to the dictionary.
I would think the usage of the word "screenshare" has exploded since 2020. Is there any reference material that would corroborate or debunk that assertion? Is there a way to predict when it might get recognition by the most-referenced dictionaries? Is there already a derivative or synonym of "screenshare" that is already in place?