Super area vs carpet area: Is it just a builder game?

Is super area vs carpet area calculation in Ghaziabad projects as misleading as I'm finding it? I work in real estate but buying for myself is different, especially with Shire Developers in Ram Nagar. They quote big super areas, but carpet area kitna nikalta hai, yaar? For a 2BHK around ₹60L, the usable space difference can be huge. Anyone checked actual carpet area for projects in Siddhartha Vihar or Crossings Republik? Builders play games, I know, but this affects ROI a lot. What's your experience?