After you file

Last year I filed a nonresident return thinking that since the company who employs me is based in GA that I had to pay GA income tax. Now I’ve learned that if I was working remotely from home in TN and not working IN Georgia I go by TN tax laws. So now I’m assuming I need to do an amended Georgia nonresident return for 2020. It’s asking for the amended federal return to be sent with it. Do I need to change my federal return at all?