Based on my memory and the sets I had in the 90s, and the sets I've seen and bought recently there is definitely less packaging now in my experience.
EG Attack of the Wargs - box is TOTALLY stuffed, no room for movement. VW Camper Van, again - box is totally full up.
Back in the 90s the big sets came with a box that had a big flap to lift, with see through plastic to look at the contents and those bags of bricks were floating around inside those huge boxes.