Name changes don’t even have to have a transgender component to be in perpetuity. Plenty of people change names due to marriage or they just hate their name. That is Elliot Page. Plenty of actors with names that don’t necessarily match their gender. If the person wasn’t trans and had changed their name to Isabella, you’d just call the person Isabella no matter when a photo of them was taken.
Name changes don’t even have to have a transgender component to be in perpetuity. Plenty of people change names due to marriage or they just hate their name. That is Elliot Page. Plenty of actors with names that don’t necessarily match their gender. If the person wasn’t trans and had changed their name to Isabella, you’d just call the person Isabella no matter when a photo of them was taken.