I understand your confusion. If you clean off and rinse your dishes before you put them in the dishwasher, it can sometimes get confusing
I might quickly rinse my dishes to remove large food particles.
If you are cleaning your dishes so much before loading that you literally can't tell the difference between dishes that have been through the dishwasher and dishes that haven't, then just skip the dishwasher step. You're already done.
I don't get the logic of cleaning dishes BEFORE putting them in the dishwasher.