The train approaches the station and slows down. In which direction at this time is it easier

The train approaches the station and slows down. In which direction at this time is it easier to drag the box across the floor of the carriage: in the direction of the train or in the opposite direction?

The box is easier to drag when the train is braking in the direction of travel. All bodies have the property of inertia.

Inertia is the property of the body to keep its state constant. When moving, the box moves at the speed of a train. When the train is braking, the box continues to move by inertia at the same speed, and the train at a lower speed. The box moves by inertia in the direction of the train.

If we consider the movement of the box, relative to the non-inertial frame of reference, relative to the train, then the inertial force acts on it during braking.