The 5.0 V8, Hybrid, and 3.5 EB are all rated an identical 24 MPG highway for a 4x4 on a 2024 F-150. The hybrid doesn’t help on the highway, it’s 500 pounds heavier. That is just dead weight on the highway. Generally my V8 does better on gas than my cousins Hybrid on the highway by a half mile per gallon if rolling through hills. Towing my V8 does 2-3 mpg better than his hybrid.
The hybrid really shines around town. They get 19+ in town.
The hybrid’s smaller gas tank is a penalty when towing too.