The situation is pretty straightforward no ending lets both characters share v's body permanently the core choice comes down to either v staying in control with johnny gone or johnny taking over while v's consciousness goes to mikoshi looking for a perfect outcome won't work here especially since that's the whole point of the story even the new tower ending from phantom liberty, which cures v's condition means giving up all cyberware and legend status

When you reach the endgame there's always a trade-off someone has to go the relic tech just doesn't allow two minds to coexist long-term, and that's exactly what makes the final choice so impactful its worth noting that whichever route you take the other consciousness isn't completely destroyed but the physical body can only sustain one of them