Yep. One thing I noticed on a recent plane trip (my first since the pandemic began) was that practically all of the food options involved ordering and paying via tablet or online (assisted by QR code). Front staff just had to bring the food, no time spent taking orders or doing the payment dance. I've seen this trend increasing in non-airport settings too, but it seems to have reached an apex there. Also saw a delivery bot trundling along the sidewalk in Madison, so that's a thing too.