You've already e-filed your return, correct? Has it been accepted by the IRS?
If so, I wouldn't do a thing. All of your figures are unchanged, so your tax calculation is no different. Keep a copy of both the original and the corrected W-2 and put it with your printed tax return for 2020. Don't change anything on your TurboTax return. Just make a note to yourself of what happened and keep it with the return. It's easy to forget.
If the IRS has any questions, they will contact you by mail. I doubt that you'll ever hear a word about it.
*** 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.***
