imo the process of making notes itself is the revision process, so (at least for me) I dont make them particularly neat, mostly scribbling down textbook points I want to remember. I found that the more detailed or organised I made them in order to "read over them later", the less I was able to remember the actual content because the goal was to make "a good set of notes" instead of learning the content.
Of course, there's a fine line between both approaches, and its always good to create detailed notes throughout the year for quick reference, but far too many times ive seen peers writing up notes a week or so before the exam, often really detailed and intricate, which objectively is a waste of time