The only reason LinkedIn works as a job search site is because of the number of users they have. They do almost nothing to be a job search site. It's just another social network with a 'jobs' category for posts.
The number of users they have is _the_ reason they’re generally better than the competition. It’s a social networking site dedicated to finding jobs/employees for people. It has slightly better features then a lot of other job listing sites, but the main reason it’s better than the other ones (outside of certain niches), is that it has more job seekers and more job posters on it.
Other sites will typically just have less jobs posted, less users, and marginally worse features. If you can’t find a job on LinkedIn, going to a slightly worse version of the same thing probably won’t be the change you’re looking for.
