I occasionally watch videos about books. It's entertainment. Other times, I read professional journals about books, because I don't currently work in the field, that is also just entertainment.

In the end, you can't take it with you.

For most of us, it doesn't really matter how you interact with the book. If you get more out of it, good for you, but it matters little.

Unless your literary critiques are getting published or something, your thoughts and comprehension matter to nobody but you.

Critical thinking is just 'the objective analysis and evaluation of an issue in order to form a judgment.'

Most fiction doesn't really require it.