You're misunderstanding the question. It's not that you get more work done, it's that the AI creates work that wasn't there before that is now required to be done. Exanple - AI generates an email faster than I could type it without question, but now I need to go line-by-line to make sure nothing in it is inaccurate before sending it, versus typing it myself and only putting in information I know is accurate. Which scenario takes more time? That's what I think many of the measures are missing. Too many are looking at how quickly the email is typed and calling it a gain, and ignoring the part where you review it. That might still be more productive, but I've yet to see a single AI sales demo that acknowledges this in a realistic way.
What an utterly bizarre question. Yes, by definition being more productive means doing more work.