There are several changes that have been made to locations in the overworld compared to the original game due to being set in an alternate timeline: Excluding the false Igor in Persona 5, this game marks the first time that recycled voice lines of Isamu Tanonaka are not used https://wearethelist.com/story22139464/os-princ%C3%ADpios-b%C3%A1sicos-de-persona-5-the-phantom-x