MicrosoftPatrick, is the quiz anonymous in this case? It would be strange, if it was with sign-in required and still be left logged with previous user when opening a quiz after being logged in with another user into Office 365 portal. It probably might happen, if a quiz was set to anonymous, so then it would create some independent token for a responder and in that case it can only operate with cookies to remember it, but i haven't tested any of these scenarios. Windows accounts (or similar in other OSes) are designed to isolate users sign-ins and information. It can be used in shared scenarios too, also with SSO, so user would only have to login into Windows. Unless this PC is not domain/Azure joined. I guess MS decision is based on not enough users complaining/asking about this and not wanting to add another element to the quiz GUI, which can confuse responders (thinking should i log out after a quiz or should i login before answering).
