If you never received the 3rd stimulus payment (EIP3) it will be entered on your federal tax return Form 1040 Line 30 as a Recovery Rebate Credit. Assuming you indicted in the TurboTax program, Federal Review, that you did NOT receive the stimulus payment.
The credit would be included in the federal tax refund or it would reduce the amount of taxes owed.
It wasn't automatically on your original return on line 30? When you filled out the first return did you say you had already got it? What is on line 30?