What's the difference between 1 & 5? I've personally witnessed every one of these, but those two seem like different ways to say the same thing. I would fully

What's the difference between 1 & 5? I've personally witnessed every one of these, but those two seem like different ways to say the same thing. I would fully agree if one of them specified a negative impact to productivity, and the other was net neutral but artificially felt like a gain.