Surprise, Amazon is screwing it's employees.
I & my friends got (I bet) maybe 1-20 deliveries a week since the pandemic, just because "boredom", & food.
Never have I heard or seen even a place to add a tip. For anything.
If I were going to tip, say, a grocery delivery person who actually put the stuff in my kitchen, like some Pea Pod guys did before the pandemic & after my knee replacements, the proper thing to do is give them Cash.