I was wondering. At different places I heard that civilian airplanes often (or even most of the time?) take off at less than 100% thrust.
For example a question that tackles this is here: Is it possible that derated thrust takeoffs are safer than normal takeoffs?
This makes a lot of sense to me.
However, whenever I see videos of fighter jets taking off (from normal runways, not from carriers), they always seem to use the afterburner. But surely they must have plenty of power to get to take-off speed without them, so doesn't this waste large amounts of fuel unneccessarily? What are the considerations for doing it?
Or is this just a "filter bubble" impression I got, because it just looks cooler and whenever those planes are filmed they know that they are and thus do it for the show?