I’m not an expert but I know that DoorDash partners with large established chains, they power Chipotle and Wendy’s delivery services. GrubHub is getting in in this too: they power Taco Bell’s new delivery service. I bet these deals lead to a more simpatico relationship monetarily. I bet it also avoids stuff like what is said in this comment https://news.ycombinator.com/item?id=20588348