Earlier quoted context omitted.
I want to highlight that part: "Participants using laptops are more likely to take lengthier transcription-like notes with greater verbatim overlap with the lecture" In other words, there is nothing intrinsically wrong with taking notes on a laptop if you don't copy everything verbatim. If you force yourself to process the material you should have no problem.
But they noticed that most do not go back to their notes as much as they should so a general advice, while typing is easier hand-written helps you learn and retain better using less exposure. Assuming a class isn't already being recorded (many/most at my university were), the best solution is probably to record audio on your phone and take hand written notes. Then go back and transcribe the hand written notes while r…
I sometimes do this; it's also nice that I can snap a photo of a slide with the tablet and insert it into the notes.
TBH, I mostly type notes, in part because my handwriting is really bad and, if I'm going to write something up about an event cutting and pasting is easier. OTOH, I sometimes prefer to have fairly cursory notes knowing that I can always go back to exactly what was said if I need/want to.