I’m curious if the cabin crew on the 777 strictly enforce overhead bin ‘sharing’ in D1. Most rollaboards don’t neatly fit standing on its side wheels-in first. Whereas it does on the A350. And if there’s center bins, then there must be almost a 1:1 ratio of bin per D1 passenger???
I have never been on the DL 777, but have been on the 777 of many other airlines.