I don't take notes while reading (mostly because I lack the habit, but I also read a lot while I walk/bike at the gym, as it helps me focus more), but I've found that physical books allow me to remember a lot more than ebooks. Even if I'm reading the same book in different formats (switching between physica/ebook based on what I'm doing, for instance), I've found that I'll remember more of the physical book's content.

Maybe I should find a way to stick with my notes again, especially for more academic books.