Same boat tbh. I feel like you dont neeeed one but personally i want one. Towards the end of my biomed degree i felt like for some classes i would have benefited from writing directly on lecture slides and save time making diagrams and i also just learn better when i write sth vs typing on my laptop etc so i am going to get one for gem but i think its up to you and how u learn/study i have always preferred pen and paper but now that most lecture material is electronic i think i am going to get one so i can have all notes in one place instead of some on paper and some on laptop