I agree and from experience of keeping relatively the same weight 4kg+/- for over a decade. If I need to lose weight I need to undereat consistently and as another commenter mentioned, its also using techniques to remove as much satiety as possible.

I need to eat foods that are nutrient and fiber dense to keep me from feeling hungry or snacking, drinking lots of water etc. And importantly, its understanding that sometimes between meals I might go hungry and that's okay, I don't need to eat straight away to fix that hunger craving.

One of the challenges I faced and I'd say most people face as well, is that eating is a source of joy and comfort and when losing weight you sometimes need to delay that joy or comfort.