Or when you notice that your nose occupies a large space in the middle of your vision. You’ve gotten used to it so that you don’t notice your nose unless you close one eye and really look for your nose. Then it’s there blocking your vision in that area. The notch is very similar. It can be distracting initially but if you stop focusing on it and get on with your work, you quickly find that you almost never notice it.

Do you have a nose like an anteater or are you actually a cyclops? I don't think typical human's noses occupy a large space in the center of their vision.

It’s in the lower center of your visual space. You just don’t notice it because your visual system has accepted it as normal. Try closing one eye and looking toward your nose. It’s right there.