Well, DoorDash focused on food delivery since day 1. It wasn't Uber's focus until recently. Even if they are doing a great job now, it will take time to close the gap.
UberEats was founded in August 2014, easy to Google.
Would you say though that Uber's focus was on food delivery in the five and a half years leading up to March of 2020?
Yes, food was and is a major focus for Uber, it's part of their pitch for growth: they just don't do taxi/rideshare, they do deliveries one of the reasons they're valuation dwarfs Lyft.