[gnicholas]

One effect of this is that if you order for pickup, you're paying prices that are inflated because they incorporate part of the delivery fee.

Or more charitably, if you order for pickup, you're paying to use their platform.

There could also be sales tax reasons to break the fees out like they do — i.e., some types of fees may be subject to sales tax, and other types not, so they fiddle with things to minimize the sales tax while still allocating reasonably.