Ghrelin and intermittent fasting

I know some people who if they don't eat a good hearty breakfast first thing they are ravenous all day, they can never catch up with their hunger. Some of these people are overweight and some are thin.

I know other people who are hungry all day if they do eat breakfast, but hardly ever feel hungry if they wait to start eating until the afternoon. Some of these people are overweight and some are thin.

I doubt there is a cut and dry answer to your question. Some people do great on IF and stick to a deficit easily. Others feel lightheaded and miserable if they wait that long to eat. There's a lot we don't understand yet about hormones, but if IF is "bad" why do so many people successfully lose weight while doing it?

Taking into consideration your other recent threads, you seem to be looking for or curious about "the best way to eat" or "the one rule you should follow". IMHO this is a waste of time, the only one hard and fast universal rule is calorie deficit for weight loss, calorie surplus for weight gain. The other variables differ by person based on all sorts of things, many of which we probably don't fully understand. The beauty of accurate and consistent logging is that after weeks and months, you can look back over logs and learn what eating schedule, what macro distribution, and what calorie level is best for you. Curiosity is great, but don't get so caught up in the minutiae, you'll just end up spinning your wheels!