I think it’s naïve, at best, to think this is simply a practice go at building a flat-top given the systems being fitted to it.
If, when, any sister ships are built then if they differ in design what’s the point in (re) building the Varig to a certain spec? If future ships are essentially the same then ‘Varig’ will have the same capabilities.
Face it, 'Varig' will be a fully capable, operational, carrier once a period of 'familiarisation' is complete.
No, I'm not a carrier expert, but I can use my eyes and use my brain.