Eh, it's a mix. There are shorter, lighter cozy mysteries in there, but my favorite series is Karen Rose, and some of her recent books are stretching to 600 pages. There's a bunch of nonfiction psychology stuff when I can find new ones worth reading as well. (Behave is listed at 790, Thinking Fast and Slow at 499, as my 1A/1B favorites.) A lot is probably closer to 200-300 just by nature of what's available though.

Audiobooks at 2x speed 40 hours of work, plus driving, showers, stuff like yard work and other more physical projects all add up. It's not really an "achievement" as much as it is just valuing that content over music/radio/podcasts, and having a job where not having the stimulation of a book would make my head explode. (I do also have ereaders and use them, but most of the sheer volume is audiobooks.)

Edit: I kind of use goodreads? the goal is nonsense and I am really inconsistent with adding stuff. I try to do it in batches from my 50 apps eventually. It doesn't count any programming books, and I don't track multiple reads (so the several series I read again that I read in previous years don't count). But if you're curious those are the books I read for the first time this year. Availability on Libby or Everand are big factors, because I clearly can't afford to buy that many outright. I like a variety of different (author) voices, so I try to be open minded. I mostly prefer mysteries though.