>TikTok content comes across as completely vapid.

I think that's exactly the point.

Twitter, Facebook, Reddit and (to a lesser extent) YouTube are weapons of psychological warfare that have been optimised to spread political misinformation and outrage.

TikTok, on the other hand, is just hot chicks dancing, stupid memes and Shrugging Black Italian Man. It reminds me a lot of old YouTube in that regard.