Agreed. This view also makes sense if we look at pre-agriculture humans - they’d eat heartily when there’s a good catch, maybe eat some leftovers the next day,

Agreed. This view also makes sense if we look at pre-agriculture humans - they’d eat heartily when there’s a good catch, maybe eat some leftovers the next day, go without food for some time, etc. Evolution by natural selection doesn’t move fast enough for humans to have adapted strongly to a fixed 3 meals a day schedule by now; eating times are still very much a convention.