Hi, former medical student here. I used both devices quite extensively, but for lectures my go-to choice is the 2019 iPad Pro (yes, still working) with GoodNotes. What I do is the following: During lectures, I keep the powerpoint slides on my iPad and add important notes on the go. After the lectures, I revisit my notes and the lecture material and then switch to my MacBook. I mainly used Anki (digital flashcards). I take the lecture content together with the comments and notes from my iPad, combine it with important literature, and create several flashcard questions based on the material, and that’s basically it.
For research papers, term papers, etc., the MacBook or a laptop is the way to go because iPadOS still has clear limitations in this regard. However, for everything that happens during lectures, the iPad Pro, or newer iPad Air versions, is ideal. I’ve had my iPad Pro since early 2019, and it’s still working like a champ. For anatomy, physiology, biochemistry, math, etc., it has been the best tech purchase I’ve ever made. But as I said, creating efficient flashcards and writing long papers does not work as well on the iPad.