What does bad bishop mean?

One of the most misunderstood pieces in chess is the bishop. Sometimes you will hear that bishops are better than knights or will hear that knights are better than bishops. In chess, the term “bad bishop” refers to a situation where a bishop is hindered or restricted in its movement by its own pawns or the pawns of its own color. The concept of a “bad bishop” is often used to describe a bishop that has limited scope or is blocked by its own pawns, making it less effective in influencing the game.