Reading the brothers karamazov as someone who doesn’t annotate?

I love reading but I am not someone who annotates at all. The most I do is if a line in a book really sticks out to me I’ll highlight it, but honestly I’ve only ever done that in a few of my absolute favourite books. When I see people talking about reading the brothers karamazov, their book is full of annotations and they even make character maps. I’ve read white nights and crime and punishment. Is going into the book and not taking any sort of notes at all a mistake? Would love to hear from anyone who’s read it and isn’t a note taker.