system
A chat on subreddit /r/me_irl
human
maybe it's because you've always had the opportunity to redo something, you can re-watch a class, re-watch a youtube video, etc so the necessity to see something and repeat it/retain it isn't there. In my day you had one shot an if you missed it you were fucked -miss class, tough learn it on your own.  They've done some studies where they've shown that if the brain knows it can easily find an answer it's less likely to retain that answer, maybe that's what we're seeing.
gpt
This easily translates to a modern workforce too. We've been recording unofficial training videos for YEARS, and not bc "gen z forced us to," but bc it's just more efficient to say "watch this, lmk if you have questions." With zoom, just click the little button to record and have a focused session prepared with the other person. That way they can go back and rewatch it. I recently took a difficult class that I had to go back and review videos from repeatedly, and I'm not a zoomer. I have one "gen z" hire who is learning a little slower than I remember learning, but you know what with repetition and candid feedback he's getting it just fine. This isn't an issue with a generation being "difficult." Individuals are individuals.