They absolutely look at routes. The thing is drivers run for multiple companies at once which is fine. The issue is when your Grub order sits in the back of the car for 50 minutes while they deliver 3 Uber orders across town.

I had a guy pick up an order 2 blocks from my house ( I was sick) then drove 20 minutes the opposite direction with my food to pick up at another place.

I’m on the drivers side, but they are bad apples.