If you’re looking at feeds and posts on LinkedIn hoping to get great content, you’re using it wrong. That is not what the site is for, that was just a sad attempt to emulate Facebook.
Here is how you use LinkedIn: you mark yourself as looking for work. You search for job postings and set up alerts. You apply for jobs. You respond to recruiters. If your friends share a post about a job you’re interested in, you apply. If you have a job opening, you post it.
And stop whining about the feed.