This was my discovery as well. Keto, at its core, amounts to optimizing for satiety. Typically that takes the form of increasing fat intake, and progressively lowering carb intake. For most people, this results in fewer calories ingested, as fats + protein heavy diets make it hard to overeat. I burned through my excess weight rapidly: maybe 2-3lb a week IIRC?
After that, it changes to figuring out how many net carbs you need. I've found that this amount changes and is not a hard and fast rule. When I started keto, I aimed for 20g total (I don't recommend that low). Now, it is more like 50-100g. There's also the mental shift: carbs are not bad, they're just a tool.
The thing that feels most unfair is once your body gets to a lower weight, you're accustomed to eating less, and you've 'reset' things, I found I had a lot of leeway in what I could get away with, diet-wise.