The worst is when someone hands me a printout rather than email it to me. It isn't even a markup, just a document. "Ok, thanks, let me put this on my cluttered desk where it will slowly become wrinkled and folded until I give up and find where you printed it from." The one coworker who does that to me isn't even a boomer, he's "adolescence during Vietnam and probably did too much cocaine in the '80s and just drinks and smokes now." Whatever generation that makes him.
I do find paper helpful at times. The printouts I have here are long schedules where I need to look for potential problems, where items pages back impact later steps. I've tried to do it electronically and don't feel as effective.