Valvoline is a speed lane oil change set up which means there’s a pit dug underground.
A tech works in this down in this pit and as the car drives over the pit, the technician stands in the pit and has access to the oil drain plug and oil filter. From that easy access point, they can drain oil very quickly.
Once the oil is drained, the tech in the pit down below yells to a tech up top that the oil is done draining and that the drain plug is tight. Then the tech up top can start adding oil.