> Certainly going to work by bike is better for weight itself then going by car.
"Certainly"? Not really. Depends entirely on your habits. If you get to work after your bike ride and eat a Snickers because it made you peckish, and you didn't do that when going by car, you've effectively done nothing for your weight.
It's true that exercise is good for you regardless. But it is orders of magnitude easier to ingest calories through food than it is to burn them through exercises.
If it made you hungry more, it is because your body needs some more nutrition as the trip was something body still needs to accustom itself to. There is nothing damaging with that. It likely means you had too small breakfast which can be composed of slow metabolizing food.
If you go to work on bike regularly, your body don't even register it as something to triger you needing more food. If you are extra hungry after 30 min transport trip on bike, you are likely in very bad physical shape.
98% of diets end up failure in the long term, precisely because just skipping food does nit work in the long term. You end up miserable, tired, passive, anemic, underperfoming on the job.
"Certainly"? Not really. Depends entirely on your habits. If you get to work after your bike ride and eat a Snickers because it made you peckish, and you didn't do that when going by car, you've effectively done nothing for your weight.
It's true that exercise is good for you regardless. But it is orders of magnitude easier to ingest calories through food than it is to burn them through exercises.