One is industrial strength endless stream of mindless shortform entertainment that some of the best ML engineers work tirelessly to make more addicting.
The other is a software and startup page that’s basically from the 90s that gets new content roughly about once a day.
I think it's clear(from research) that problematic social media use (defined as preoccupation and compulsion to excessively engage in social media platforms despite negative consequences) is bad for you mental health, but calling it an addiction feels like a stretch. It also isn't clear that it's much worse than staring at reality tv all day. I also seems like rates of problematic use among adolescents is in the low single digits basically everywhere that people use social media. Given the prevalence of social media use, it's not all that catastrophic that some 4% of users are over doing it. Americans at least seem to be more likely to drink excessively than have problematic relationships with social media.