That talking point - that rapid-form media creates attention deficit problems is honestly overdone and there's no evidence that it's true at all (that I know of). ADHD exists and is a mostly genetic condition, you can't catch it without something serious like cPTSD. Amusing Ourselves To Death emphasized way more the angle of densensitization.

I used to think doomscrolling broke my brain before I was diagnosed. Later I realized I was "doomscrolling" way before I got my first digital device, rereading the same fiction books late into the night.

I can buy the argument that rapid-form media consumption acutely creates symptoms like ADHD (for at most a few hours after exposure) because I see it even in NT people.