It depends. If what you “want” is equal to what you “need”, you can eat as much as you want during your eating hours.
But if what you want is to overeat, that’s not allowed. Overeating can lead to an eating disorder and increase the risk of developing a chronic condition like diabetes and heart disease.
Intermittent fasting is more like a lifestyle, it guides you to have healthy eating habits and lose weight.
You can eat as much as your body need and don’t need to be dieting through intermittent fasting, but do not overeat.