Similar to Facebook, the worst part of LinkedIn is the part that's front-and-center; the timeline. However, if you ignore that, you can find some far better ways to use the platform. LinkedIn can be legitimately great if you're utilizing its tools for networking, hiring and/or looking for work.
The unfortunate biproduct of the platform is that it attracts every single pseudo-philosophical bro-entrepreneur on the planet who has snake oil to sell you. Those kinds of dudes who's Instagram profiles are nothing but pics of them leaning against a Ferarri or monochrome Muhammed Ali quotes about never giving up or some shit. They all want to you sign up for their seminar or virtual class on "success" and "networking" and "selling yourself".
But yeah, it's also more prone to bullshit copypasta "success stories" than any other social media platform from what I've seen.