Does anybody actually see linkedIn as this? LinkedIn largely markets itself as an employee <-> recruiter <-> employer connection platform, and almost all of the posts I see reflect that. Let's say I mute the posts advertising job openings or blatantly pushing company PR. Most of what's remaining is just buzzword regurgitation by self-proclaimed "thought leaders" trying to make a name for themselves before they jump ship for a better title. There's a reason we don't see many LinkedIn links getting to the front page of HN - there's very little good original content there.
If I want to get an honest opinion from professionals in my community, I'll follow them on twitter, read their blogs on their own platforms (or the likes of substack), or even reach out directly. Everything posted on LinkedIn is implicitly poisoned by the filter of "This post exists mostly to make me look good to future employers/employees", which rarely makes for good content.