Does reaching out to HR on LinkedIn actually work?

[u/Dwennimme]

I keep seeing advice on social media about how you should always contact HR or other people at the company you’re applying for. Has anyone actually been successful with that?
What did you say?
I‘m entry-level, so looking for a job now after graduation. I switched careers, so I think my CV is confusing to most people, as my path is not linear (started as a sound technician, then studied Humanities, then Master in IT with some internships in consulting).