I like the many-interpretations interpretation of quantum. It says that you should believe all of them, or rather, choose a different interpretation based on your mood. For the optimistic, it's many-worlds. If you are going out tonight & hoping to get lucky, it better be Copenhagen. If you are falling into despair then it's going to be superdeterminism for you.
You are right in that interpretations have utility as helpful (mostly consistent) analogs that are easier to reason about when solving certain problems with the theory. One interpretation might be more handy than another in a given context.
They are just tools to facilitate thought. But they are not models that can be accepted as scientific "reality" (as physicists use the word), since they cannot be experimentally verified by design (they do not lead to different predictions from the accepted theory), they are merely plausible.
Superdeterminism is hardly the only one to pose problems for some definitions of free will. It's also not a problem for others, i.e. https://en.wikipedia.org/wiki/Compatibilism
