As far as the technical definition of "novel" goes, quantity matters to some regard, but once a certain point is reached, it shoudln't matter at all. And I'm often disappointed when I read a novel only to discover that much of it is filler.
Quality! I once bought a novel that looked like it had a great plot. I couldn't wait to start reading it. I never made it past the second chapter because of all the useless stuff the put it in.
Please view my answer to your similar question 🤗
Half fried eggs with pepper and salt. Usually how I make them. I like them better too.