Reading a book and taking notes is to see paragraphs or sentences worthy of appreciation and marking. There are many such famous sayings and sentences in some articles and novels. If you want to write them down, there are many kinds. You can copy it in a notebook (this is my own way), or you can take it down and read it carefully later.
Therefore, it is definitely not a good habit not to like to mark books, and no one stipulates that reading must be marked on books. Besides, isn't it immoral to borrow books from the library and mark them? I borrowed a mystery novel from the library before, and it is really wonderful. I marked a character in the profile and said, "This is the mastermind behind it." My interest in reading was completely ruined! Later, I returned it directly and secretly praised this "enthusiastic" classmate.
The way I read is to copy beautiful and profound sentences in my notebook. After reading the book, I will write a review. You can read as many words as you want, depending on my feelings. I watched "Ordinary World" before, which touched me too much. I wrote thousands of words about it. When I came across such a completely dark novel as Rice, I just touched it briefly, because I really felt terrible!
Therefore, the way that suits you is the best. The important thing is to let you enjoy reading, and enjoy reading more. Reading is more efficient, and you can get the true meaning of life and philosophy from it. So if you don't like marking when reading, don't worry about whether you are wonderful or not. Even if it is wonderful, it is nothing. After all, it is good to be happy without violating morality.