i'm not a gen z but I routinely do that. a habit picked up from grad school work and having to assimilate several frameworks and techniques quickly.
arguably clickbait is the reason: i'm not here to listen to the video or all of the other fluff, i'm here to get the point as quickly as possible. it's a 'meeting could have been an email' sort of thing where lots of videos could really just be several bulletpoints.
AI youtubue summarizers are great in that regard.