Jump-starting with a power bank or starting the car with a power station? What works?

Jump starting with a power bank is a crazy thing. Using a power bank for jump starting is extremely practical and simple.
This is because the battery of a vehicle, be it a car or motorhome, can be drained quickly due to various circumstances. This effect is particularly amplified in the cold winter months. I am therefore interested in whether it is possible to start a motorhome using a power station and what other alternatives there are.