Actually I think one of the main values of note taking isn't that you get notes, it is that engaging your brain to summarize points makes you understand and remember the points better, even if you throw your notes away right after.

It is like writing: One of the main purposes of writing (for me and many others) is that it forces you to structure your thoughts. You could give that task to AI, get the resulting text, but your loss is the lack of clarity you could have gained from doing it yourself.