If we’re going full meta, these sorts of questions are always happening in the sense of being posed as hypotheticals, rather than literally happening to you, so the only real effect of your answer is leaking information about how you would behave. This doesn’t require alternate realities or retrocausality.
Also, I don’t know if you count this as alternate realities, but even if the hypothetical were truly appearing to happen, it could just be a simulation spun up by the predictor.
If we’re going full meta, these sorts of questions are always happening in the sense of being posed as hypotheticals, rather than literally happening to you, so the only real effect of your answer is leaking information about how you would behave. This doesn’t require alternate realities or retrocausality.
Also, I don’t know if you count this as alternate realities, but even if the hypothetical were truly appearing to happen, it could just be a simulation spun up by the predictor.