This has been on my mind periodically today because I ordered takeout for lunch for the first time in a couple weeks. Aside from not all takeout foods requiring to be heated thanks to wider options from services like Favor and Uber Eats (deli sandwiches, sushi, salads, etc...), quite often it's food eaten with your hands out of disposable containers/packaging handled by someone else, rather than utensils preventing additional touching of the packaging it came in.