Wow I've been on the JFK-DXB flight probably 20 times in F and I'd say a good 5 times i've been the only passenger... and even when not there's only been 1 or 2 other pax..
so surprised to hear the cabin is full these days

then again my travel was a year+ ago and it was always the daytime flight

an almost guaranteed full longhual F flight is yyz, only 3x week , always get destroyed by the flex plus fares