To be more clear, I meant "it can't only be development and QA". Meaning, there has to be something else included in that number that is not traditional R&D.

Also, to be clear: the statement is meant from the perspective of, how do they have that many employees (what are they all doing); not "why" do they have that many (which, while seemingly very large, I am not in a position to judge), nor meant to be a slander against outsourcing R&D work to China (though, to be crystalline clear, I inherently trust Zoom less because of this, just like I trust companies who base or outsource R&D to Australia less because of Australia's laws on these matters).