If you keep your LI profile up to date and have in demand skills, people will be knocking down your door to give you money. I've found all my best jobs from LI contacts tbh.
It was a wasteland for a while but in my opinion has rebounded.
As an anecdote/data point: I largely forgot about LinkedIn, and never really heard much from them. One day I installed the app and decided to see what all my old contacts were up to, just browsing around. Immediately after, my page views went up and I was sent a few messages from recruiters. I'm wondering if they don't 'reward' more active users in recruitment searches...
It was a wasteland for a while but in my opinion has rebounded.