Right, but none of those are likely to get you said five weeks off, unless you're planning on pretending to be remote working while actually on vacation. Which is... risky.
I think he means that you just don't tell anyone that you now only work 6 hours a day instead of the 7.5 hours you used to. If your productivity is approximately the same no one will be able to tell. Requires you to be in a position where you are not strictly supervised of course.
