I'm not sure that functional elevators were necessarily something the Fallout franchise really needed, and predictably Bethesda nerfed their execution pretty hilariously. There's a host of glitches to be found while using these, from raiders who spawn out of nowhere to game-breaking bugs where the doors become permanently fused shut (hope you had a separate save file).
One of the oddest variations is when your companion gets stuck halfway through the doors as they close. Rather than being horribly cut in half when the elevator goes up or down, they instead somehow phase out of existence and take the ride with you anyway.
I'm telling you, that dog is magic.