Even in the kinda rural area I grew up in it was common for Italian restaurants to have their own delivery drivers. Many still do, because the customer experience of the delivery apps is often inferior. If we go back to a pre-food delivery app time, my general take would be "and nothing of value was lost." Restaurants will still be able to have their own delivery services, people will still be able to simply pick up their food. Getting your Hamburger from that special place across town (lukewarm) is nice, but it won't kill you if its not possible anymore.