Does anyone know if my spouse (EU citizen) can wait with me (US citizen) in line until I complete the kiosk? From what I've read it seem that after the kiosk there will still be a border officer or e-gate to formally admit you? We typically just go to the all passports lane to stay together.

Out marriage is recognized / registered in France. We could take our Livret de Famille on on next trip if it would help.