I also haven't read a physical book in a decade due to time and availability. I have gone through hundreds of digital thomes over that same span.
Say I'm 200 pages into a math book where something is making use of a lemma that was discussed back around page 30, and I want to go back and refresh my memory of that discussion.
With a physical book, my memory of that lemma will include whether the discussion started on a left side page or a right side page, perhaps even if it was near the top or bottom or middle of the page, what diagrams were nearby, and about how far into the book it was by the difference in feel of the thickness of the stack of pages in my left hand and the stack of pages in my right hand when opened to where the lemma is.
In other words, with a physical book I get a sense of the content as being spread through a 3D space, that my attention moves through as I read, and my memory of the content includes where it is in that 3D space.
It's sort of like a physical book can serve as a kind of self-referential mind palace .
With an ebook, I lose the feeling of the information having a location in a 3D space.