If you know how to properly apply your federal return to your GA return (what transfers and applies, etc.), you can certainly choose to file any way you choose. I know that many states offer free filing via their websites.
In TurboTax, the federal return information automatically transfers into the state return when you prepare them together. There is no e-filing fee for a state return prepared using the Online platform. How you proceed is completely at your discretion.
*** I am NOT a tax expert. I am a seasoned TurboTax user, and volunteer to provide assistance to TT users. Nothing I post is to be considered TAX ADVICE; I bear no legal liability for responses.***
