No, the O-1 is not officially dual intent: https://www.wegreened.com/o1-visa
Complete nonsense. It is.
https://fam.state.gov/fam/09FAM/09FAM040213.html#M402_13_5_B
Complete nonsense. It is.
https://fam.state.gov/fam/09FAM/09FAM040213.html#M402_13_5_B