i.e. there is no one good suit-everyone way.

There is a nuance to that. There are ways a person can learn things that help any sighted person, the nuance is "the person may not want to use the methodology", then they say "it doesn't work for me". Self-fulfilling prophecy.

One is to write things out long-hand. It is additional to reading, it involves motor actions, the storage in the cerebellum has another leg. The analogy I use is "legs on a stool" -- read & write is only a two legged stool, so it implies there is need for another trick for stability. Typing the concept/text etc in a computer is not a substitute.

When I was on a "Creative Management**" course the person over-seeing the running would sit at the back quietly and doodle, (colours often). When his boss asked how the lecturer did, he consulted his doodle and he was confident in assessing the performance. I found my notes on particular songs made during the thinking process, if it took more than a day, had a similar feel, The juxtaposition of the words, phrases, sqiggles etc. Works for dyslexics even more so.

Indeed there is a methodology that says when starting to jot down notes, the place to start is the "subject" ringed round in the centre of the page/paper/blackboard. Allied concepts then can be placed around in boxes/trangles/etc with lines for connectedness. More minutia can be placed around them with lines of connectedness to wherever. Circled, colours, thumbnail photos. Think criminal investigations/dramas, they often have such walls.
A doddle with rules!

** I thought they wus groomin' me for management, and they wus trying to nuture my creativity. As my colleague said "I bet you got more put of that, than I did" and boy was he right.