@gavvet your obvious interest and deep understanding of this subject lead me to ask if you've taken up the art of flaking yourself?
I've seen and read a lot of information on the subject but don't have the time or inclination to put into it to become even a beginner at it.
Arrowheads can be made from the thick base of a glass bottle, google it on you tube, its easy and fun... all you need is a face mask and protective glasses, A 6 inch nail and some leather.
I've also made my own handaxes as experiments.
I was going to mention that.
I've seen some of the videos and there's a surprising number of people here in the US who hunt with "aboriginal" methods, making sinew backed bows and there may even be some who attempt using atlatls.
While some head in the direction of more and more technology, i.e crossbows that near the capabilities of firearms, I like the low-tech approach better.
I gave up hunting years ago, more out of time constraints than ethical considerations.
But I've come across a few innovative techniques recently that make me wonder about re-purposing modern materials and applying them to aboriginal methods. Glass arrowheads and some modern materials that can serve the same purpose as traditional things like rawhide & sinew.