Piston engines can also do. You want max output for take-off, but to maintain the cruise speed you need around 75% of the engine output and you fly at "steady e

Piston engines can also do. You want max output for take-off, but to maintain the cruise speed you need around 75% of the engine output and you fly at "steady efficient power" (75%) for cruise; there is no difference here. It's not like cars where you brake and accelerate many times.