Tech industry title "Head of"?

What exactly is the newer "Head of...." title/role in the tech industry? Cross post. I'm a tech industry veteran and interviewing. I am seeing "Head of" titles (eg Head of People) pop up, esp in startups. Looking for context.......is this a position between Dir and VP, or more junior than a Dir? In a company of say, 60-100 employees, it seems inflated, and the people in these roles sometimes have 5-10 years of total work experience. Further, if I'm reporting to a "Head of......" what should my title be?