If you filed for an extension of your work authorization prior to the expiration of your previous authorization and you fall under certain categories, your authorization to work will be automatically extended for 540 days beyond the expiration date of your previous work authorization. https://www.federalregister.gov/public-inspection/2022-09539/temporary-increase-of-the-automatic-extension-period-of-employment-authorization-and-documentation and https://www.uscis.gov/eadautoextend