from what I can tell, the market is pretty broken up and it varies a ton. It's hyper-competive and honestly I've been experimenting with doing CYOA stuff to get featured on Steam as a game, instead of being labeled as a book.
Generally libshits hate everything that's not super gay (libshits are like, 1/4th of the market)
boomers... They buy like, 1/4th also give or take. Rest is reaaallly just about anyone tbh. There's plenty of people who buy books and read it, I mean my first novel which I hardly marketed to anyone not in our thing got 50 sales, which came out to about $250 - which is good!