Yup. This is the official use of it 🙃

Maybe I should’ve said that you CAN use them as a way to avoid touching two slices when pulling your own. You pick it up, place it in the middle of the slice next to yours, and pull so you don’t touch the crust of the next persons slice. Probably a creative use for something that was originally intended to keep boxes from saggjng

Isn’t that a sign the pizza is too big? Never seen these things before…