Non of that honkey ponkey is needed if you just give up locality and a hard deterministic explanation like De-Broglie-Bohm gives all the same correct measurements and conclusions like Copenhagen interpretation without multiverses and "wave function collapses".
Copenhagen interpretation is just "easier" (like oops all our calculations about the univers don't seemt to fit, lets invent "dark matter") when the correct explanations makes any real world calculation practically impossible (thus ending most of physics further study) as any atom depends on every other atom at any time.
De Broglie–Bohm doesn’t remove anything from the wave function, and thus all the pointer states therein contained are still present. The theory basically claims that one of them is special and really exists, whereas the others only mathematically exist, but philosophically it’s not clear what the difference would be. The Broglie–Bohm ontology is bigger than MW rather than smaller.