There is an entire generation of school children (at the very least in my locality) who were forced to use an incredibly poor implementation of this method by teachers who barely understood the intent themselves.
On which we were punished for not doing correctly.
The biggest gripe I had about this method was that the lessons in middle school and high school never had enough information density to make this meaningful in any way.
Anyways, I can’t take notes like this anymore. Being punished an entire letter grade for not having enough questions on my notes when I was aceing every single test made me never want to take notes like this ever again.
Edit: I’m sure this system works for some people but it definitely did not click with the way my brain retains information but being forced to try to learn in a manner that my brain did not want to learn has left me with a burning desire to never do it again.