Your question is very vague so I’m just gonna leave some words here that might touch on it.

Rather than just focusing on the media or content I’d worry strongly about peoples ability to tolerate boredom. As an older person I grew up without the means of filling every dull moment with a screen.

I look after children regularly and I focus strongly on their perception of boredom. Rather than giving them a screen when they fail to find something to do we sit together in silence. I explain that being bored doesn’t hurt or doesn’t make us sad or angry. I also explain that it helps to charge our mind so that doing things we like is more fun once we get to it.

I expect an explosion in mental health problems in future generations just because of the lack of time people give themselves to sit with their thoughts (without it being forced upon them).

The type of media, specifically short form content is just exasperating these issues but the onus is on parents and guardians to teach how to deal with it.

Maybe I’ve missed your point but thanks for letting me ramble.