You indicated on your federal tax return that you did not receive the 3rd stimulus payment.
The IRS adjusted your tax return because they have records showing that you received the 3rd stimulus. The IRS removed the Recovery Rebate Credit of $1,400 on the Form 1040 Line 30 so there are now taxes owed of $579.
Go to your IRS tax account and there should be a 3rd stimulus payment posted - https://www.irs.gov/payments/your-online-account
