Thank you very much for your feedback, markfug.
Yes, the “What’s new in …” targets certainly not the beginner as main audience, I agree.
Typically I would assume that the Quick Start Guide was used before, but I checked, no mentioning of the Knife Tool there.
Another source are the Quick Tips to get up to speed, but my impression is, that a certain knowledge is presumed there as well.
More practically is the one from Patrick:
The tutorial content that is missing is a series which discusses the area of use, then each single function/option or parameter and last but not least variations and alternatives. I guess that would be the description of the material that you are looking for.
Of course, if there is a problem you like to solve right now, the Q&A forum is always open.
Thanks again and,
all the best