On the top right of a post there is an X button. Click that. It will remove that content from your feed and offer less content like that.

Like content you find relevant and X out the content you find useless. In 1 week your LinkedIn will be completely tuned

Also, as someone who I think might be a 2nd or 3rd degree connect of yours, the Bay Area Asian American HS network has been fairly high quality. Leverage and optimize for the network of friends and alums who ended up becoming IBs, PEs, Engineers who deliver, VCs, Academics, etc. And then optimize to follow whoever they follow in turn.

Interesting, I've X'ed posts in the past but haven't found there to be much effect. Maybe the algo is changed now; I'll try again.

I find it annoying that other social networks offer "hide this" or "see less" features which are ineffective. E.g. Facebook won't stop putting clickbait "shorts" at the top, no matter what I do. YouTube keeps showing me ads for some kind of dating crap with suggestive pictures of women despite my best efforts (apart from adblock, which stopped the obnoxious and repetitive ads...)

It's true, this is possibly worse than not offering the option at all!