When I read our book club selection, I or one of the others in the group will often look them up for more info on the book the they choices they made in writing it. This happens more with authors from different cultures & countries from us (United States.) For example, we read a book by a nonbinary author from Nigeria set in Nigeria & knowing a little of their background improved our discussion & comprehension of the story & the setting.

For my personal reading, I don't bother.