According to my goodreads, since 2016 I've read anywhere between 57 and 178 books every year. But I don't really think numbers really say anything. I try to read a variety of stuff, short poetry books or graphic novels are always gonna make the number higher with a low effort, it's not just 500 page novels I read.

Physical books: secondhand shops, or borrow from friends.

Ebooks/audiobooks: subscription services like bookbeat and storytel (they often have deals where you get a month for 1 euro or something like that, I rarely pay full price), librivox, amazon deals (a shit ton of free books too), and I have library cards in several cities, but that might not work in every country.

Storygraph is great. I also try to pay attention to the genres I'm reading and the app makes it so easy with all the stats.