How will the executive orders affect people who already have their gender changed?

I have a family member who is a trans man. He has his gender and name changed on every document - social security, birth certificate, and ID. How will the new executive orders about trans people affect him since his documents are already changed? He does live in a blue state, so I assume for any state level documents he will still be okay, but is the federal government able to reverse gender changes that have already been made on federal documents?

If this isn't the right place to ask, I apologize. Please be kind!