Are you for real? Stay far, far away from Bethesda games because you will literally have a panic attack before you even get an hour in. Rebirth is scarcely "Open World"—you hardly even need to bother with Chocobos or vehicles to get around. Rebirth is slightly more open than Pokemon Sword and Shield, maybe about the same as Violet/Scarlet and far less open than either of the Zelda games for Switch. If Rebirth overwhelmed you, maybe RPG is just not a genre you should write about or play.