I still hear companies speaking about their relatively flat organizations. Relative to what? I interviewed for a top tech company and the hiring manager told me

I still hear companies speaking about their relatively flat organizations. Relative to what? I interviewed for a top tech company and the hiring manager told me they were a flat org. Yet there was a hiring manager who was a people manager. They also had a VP, many directors, and managers. I am not sure they understood the concept of flat organizations. I assumed they had a majority of individual contributors and considered it flat.