이건 잘못 된 정보입니다. 스템opt 연장 자격이 있고 이미 접수를 했고 receipt를 받았으면 180일 자동 연장 입니다.
https://www.uscis.gov/working-united-states/students-and-exchange-visitors/students-and-employment/stem-opt#:~:text=If%20you%20file%20your%20STEM,your%20STEM%20OPT%20extension%20application.
“If you file your STEM OPT extension application on time and your OPT period expires while your extension application is pending, we will automatically extend your employment authorization for 180 days. This automatic 180-day extension ceases once USCIS adjudicates your STEM OPT extension application.”