I really want to get off LinkedIn for this same reason. The happy-speak is so nauseating. The only reason I stay on is so recruiters can find me, but would be great to hear more of your experience in the job market without it.
Pretty bad, overall. I got diddlysquat out of LinkedIn when I was job hunting 10+ years ago but then I got nothing out of my other leads, either. I was old back then and older now so I am staying at my employer until I'm fired, retired, or expired. LI may be required these days to get anywhere, I just adjusted my travel plans so I didn't need to deal with its BS or the general Talent Acq/HR gauntlet required to get past square one. Probably not helpful to you but there it is...