The worst[1] part about losing my job last month was having to take LinkedIn seriously, and the best[2] part about now having found a new job is logging off LinkedIn, for a very long time hopefully. The self-aggrandising, pretentious, occasionally virtue signalling, performance-posting make me want to throw up. It takes a considerable amount of effort on my part to not make sarcastic shitposts, but in the interest of self preservation, I restrain myself. My header picture, however, is my extremely messy desk, full of electronics, tools, test equipment, drawings, computers and coffee cups. Because that's just how I work when I'm in the zone, and it serves as a quiet counterpoint to the polished self-promotion people do.
And I didn't even get the new job through LinkedIn, though it did yield one interview.
[1] Not the actual worst.
[2] Not the actual best.