As someone who has dieted by cutting and counting calories. This wasn’t true, I didn’t have the energy for high intensity workouts sure but I did have the energy to walk a mile or two and the result is the same loss of calories as 2 mile run. Walking just takes a bit longer.
The important thing was drinking a lot of water or gassy things to feel full to quiet the urge to snack.
Also Deleting junk food, sodas , and beer completely from my pantry. Having coffee without cream, Replacing them with low calories snacks like carrots, celery, bananas.
I dropped 15 lbs fairly fast.