If you are referring to the stimulus payment, the IRS will issue payments using the most recent information they have on file, likely from your 2019 tax return, either by direct deposit, check, or debit card. See the link provided below for more information:
How will the second stimulus impact me
If you are referring to your tax return, your refund will go to the option you selected for getting your federal return:
What are my different options to get my federal return