Yes, power steering is known to have much better fuel economy than hydraulics because it doesn’t take power from the engine to steer the vehicle. Electric power steering (EPS) is a new normal for modern vehicles, so you’ll likely have no problem finding a car with this type of steering.
The power steering also helps to lighten the load for the driver so that the driver doesn’t have to haul the steering wheel to move the vehicle left or right. The EPS or Electric Power Steering system puts a motor on the steering rack or steering column.
Sensors detect how much force the driver puts on the wheel and communicates how much assistance is needed to turn the wheels. Modern cars come equipped with this onboard especially those with self-driving capabilities. The sensors and computers are the way the car can activate lane-assist or autopilot.