I did the complete opposite: I threw away almost all my books, digital or physical. I now restrict myself to having two books I’m actively reading at a time, one fiction and one non-fiction. If I reach the final 15% of either one I allow myself to buy a new book, not before. This has massively increased the number of finished books.
I found having a Dropbox folder with hundreds of books to be both completely useless and paralyzing. I kept switching books, or i was unable to pick one due to too much choice and ended up just scrolling instagram or Reddit.