Literature is an art form and can be beautiful in itself. There doesn’t need to be a rigid plot for a book to good. In fact, it’s probably harder to write a good book without a plot because there isn’t the structure to use as a crutch.

Take something like Agua Viva by Clarice Lispector. It’s a beautiful plotless masterpiece and goes against conventional writing. I would much rather read that than some bland, basic hero’s journey that follows a strict plot structure