As far as I've read, based on research around attention and focus behaviors, the context switching element of it is the most dangerous part in terms of developing ADHD type behaviors, and I agree that TV and radio doesn't even scratch the amount of switching that happens with modern social media. TikTok, Instagram, Facebook, Reddit, etc. All of them make you switch context every 30 seconds or less, often for hours on end. I think we're making the mistake of looking at these older technologies like TV and radio, thinking "we survived that, we'll survive this" and that is incredibly dangerous.

Dr Andrew Huberman, professor of neurobiology and ophthalmology at Stanford, does some excellent lecture-like podcasts on the subject that are well worth a listen.