I really wish LinkedIn had features to filter out all the garbage from the feed. 90% is someome I know liking garbage that was posted by someone I neither know nor care about.
Not just about viewership - if you are applying to positions, LinkedIn gives preference to candidates who are more engaged ON the network (posts, likes, comments, Pulse) over lurkers. [1]
So this is only getting worse. You'll have to see a lower quality feed just because the algorithm is forcing everyone to boost their own metrics anyway.
[1] https://www.linkedin.com/sales/ssi - See your own tracking, look at the metrics description