Revita

RU/CIS: {sub/564838} (confirmed)
CN: {sub/564839} (confirmed)
LATAM: {sub/564840} (confirmed)
Everyone else (including SEA without CN): a ROW key that can be redeemed everywhere {sub/402630} (confirmed)

https://www.steamgifts.com/discussion/bKFpq/humble-bundle-april-2023-humble-choice-41-leaks-for-may