The French architect you mention is Jean-Pierre Houdin, he claims that a long straight ramp was used for the bottom 1/3 of the pyramid, then an interior spiral for the remaining. There is a large notch 2/3 up the pyramid and other evidence of some spiraling features that lends some weight to this one.
Another interesting theory is that water from these canals were used in a series of locks and temporary "ponds" elevated as each layer of the pyramid was built.
The Netflix equivalent would be binge watching, I think. I binge watch subjects. Over the years, Egypt has been a recurring subject.
It should be noted that it is purely for entertainment. I watch documentaries because that is what I enjoy. It is absolutely not a scholastic activity and I make no effort to learn anything from it.
I just really enjoy documentaries. If I learn something, that was incidental and not my goal. Very, very seldom do I take it to the point where I'll do additional research on a topic, contact a person from the documentary, or do a more detailed study of something in the docs.
It's just what I do, I like them.
It's probably a good idea to remember how many times they have 'known' how this was done. We have 'known' how it was done a number of different times - and ways. I remain skeptical until I've seen more about it and the idea has withstood scrutiny.
As for the construction, that's still a mystery. One of the more interesting theories is from a French architect. He supposes that there was actually a ramp, but that it was built inside the pyramid. He hasn't had much luck, as far as I know, investigating this. They did climb up the side and found a previously unknown chamber behind an area exposed by a missing stone. I'm unqualified to opine about the viability.
Err... I watch documentaries, to the exclusion of almost everything else. There are a whole lot of documentaries about egyptology.