It is very different for different people. If I IF, I end up overeating at night, and can't stop. If I start with a significant breakfast, and a good sized lunch, I don't eat much at night, and tend to lose weight.
BUT a HUGE amount of people can IF without binging at lunch and eating endlessly at dinner.
I also find that when I eat bigger meals, I start getting hungrier and hungrier and more obsessed with food and expectation of a meal. Grazing seems to work better for me. I am not at all annoyed by eating 5+ times a day like some people are. They feel liberated if they get to eat only once or twice a day and they easily get enough food in to hold them over for many hours.