I did not have an expert write my profile and in fact I’ve hardly touched it in years.
Those numbers are highly tied to an independent event (your first salary, you could be a better negotiator today) and have been changed by inflation
My most recent job search consisted entirely of friendly intros (most by colleagues at the hiring manager level) at a mix of startups and major tech companies. I have met these people through the normal course of business and life, and never through LinkedIn.
Maybe I'm special, because I've spent my career in tech consulting, so I got to network that way, but this is hardly a unique career path.