The takeaway checkout suggests a tip before I've collected anything. How do I choose without feeling judged?

I selected a pickup order and reached a screen offering three tip amounts, with a separate option to enter another amount or leave no tip. My friend watched over my shoulder. "Don't be that person," he said when I opened the other option.

I'm collecting the food myself. I don't know who receives the tip or whether I can add one at collection. I usually decide what I want to give when I pay in person, so the advance prompt caught me off guard.

I'm not asking for a universal tipping rule or assuming the suggested amount is mandatory. I want to make a considered choice rather than tap the middle button to stop the commentary. What would you find out about this particular order, and how would you tell a friend to let you handle your own checkout?