The 2nd Stimulus is suppose to be a PAYMENT; not a tax credit on the 2020 Federal Tax Return. This was not stated or approved by Congress for either the first or second stimulus ...
As of January 29, 2021, (the IRS) Get My Payment will no longer be updated for the first and second Economic Impact Payments. If Get My Payment does not provide a payment date, a payment will not be issued and you may claim the Recovery Rebate Credit, if you’re eligible. You must file a 2020 tax return to claim the credit even if you usually don’t file.