Ideally, I would spend more time reading physical books, since I like the physical experience + there is more time to pause, ponder, reread, and I'm less likely to miss details.
However, I know myself and I would only get through maybe 10 books per year if I stuck to reading with my eyeballs unless I radically changed my schedule.
So, I rely mainly on audio books to get through my pile of thousands of 'books I want to read before I die'. I aim for 100 books per year, and usually get there or close. This year was a crap year (76) so trying to up my game for 2025. I will never get to a fraction of the books I want to read in my lifetime, and it is very frustrating, so the faster the better for me.
ETA: For very technical books or those with illustrations, or textbooks, paper is best. Or at least an electronic version I can bookmark.