Nothing more to add about the McD food. But got a +'ve story about McD.
Many nations are tea drinkers. Did a project nearly 20 years ago in northwest India. Flew in and out of Delhi. Inbound, the usual airport pickup and straight on the road to the job. Spent 16 days desperately trying to find a decent cup of coffee anywhere in the region to no avail. And I mean desperate. Longest stretch for me without coffee since I was a pre-schooler. If this had been Japan, probably would have done the sword through the abdomen thing.
Get back to New Delhi, have a hotel for the day as my flight leaves next day early morning. Spot those double arches a block from hotel. Filed direct with no intermediate waypoints to that destination immediately upon checking in. Coffee tasted EXACTLY like back home. There is a merciful God after all. Passed on the Maharajah burger - lamb, not beef. No idea if it was "fresh" or frozen pattie, or if there was mold in the bun.