I think readers may find this significant...assuming my translation is correct from Page 78 of the report.
L’altitude maximale d’environ 38 000 ft a été atteinte à 2 h 11 min 10.
The maximum altitude of about 38,000ft was reached at 2 h 11 min 10.
Peu après 2 h 11 min 30, le PF dit deux fois qu’il a perdu le contrôle de l’avion.
Shortly after 2 h 11 min 30, the PF stated twice that he had lost control of the aircraft.
A 2 h 11 min 37, le PNF dit « commandes à gauche », prend la priorité et donne une action
brève en butée à gauche ; le PF reprend presque immédiatement la priorité sans aucune
annonce et continue à piloter.
At 2 h 11 min 37, the PNF said "controls to the left", took Priority, and give a brief control input left (?to the stop?)(en butee); almost immediately the PF took Priority back without any announcement and continued flying the a/c.
Technical note.. Airbus sidesticks have a "Takeover button" which when pressed disables the other sidestick. This is known as "Priority Left or Right". There are technical complexities but the important message is ...
RHS: I have lost control
LHS: OK I'll fly it
RHS: No I'll fly it anyway.......