[onlyrealcuzzo]

You're correct. The affect of exercise is vastly overrated on weight loss [1]. The more you exercise, the hungrier you get, the more you eat. That being said, you're healthier if you're overweight and exercise than if you're overweight and don't exercise. BUT, if you're going form COMPLETELY sedentary to walking to and from train stations, up and down stairs, and standing on the train -- that's likely to have a dramatic effect. Completely sedentary lifestyles and depression and obesity tend to go hand and hand because of hormonal / neurotransmitter issues.

In any case, changing your diet is likely much more effective for losing weight.

[1] https://www.dietdoctor.com/does-exercise-promote-weight-loss