As Chad mentioned in an earlier podcast (2018?), the best surefire way to lose weight is not to diet, but to change your diet. Specifically, eat healthy, whole foods.
Cycling creates a fairly significant calorie deficit beyond your BMR and it’s quite difficult to make up for that deficit when you’re strictly eating good food. How many bananas and sweet potatoes can you really eat? Not as much as you might think.
As for maximizing caloric deficit, endurance rides win every time.