Pues al final, parece que estabas en lo cierto:
https://www.gamereactor.eu/indiana-j...nload-1463213/According to a user on X (and later reposted by the 'Does it play?' account), the Indy box once again contains only one disc and forces you to download the rest of the game over the internet. Furthermore, the user who got his hands on this physical copy before its official release admits that even though he bought it, the system won't allow him to play before 9 December, as this disc is from the standard edition.
Al parecer la edición física sólo contiene un disco, de tal manera que es obligatorio descargar el resto de datos de internet.