Undergrad Superposition status in the different interpretations.

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The status of superposition varies significantly across different interpretations of quantum mechanics. While some interpretations, like certain forms of the Many-Worlds Interpretation (MWI), ascribe a real-world status to superpositions, others, such as Copenhagen Interpretation (CI), view them as a reflection of our ignorance prior to measurement. Superpositions exist within a multidimensional Hilbert space and are not directly observable. The evolution of these wavefunctions is governed by the Schrödinger equation, which, when combined with the Born rule, yields probabilities for classical outcomes. The discussion highlights the complexity and differing viewpoints on the nature of superposition in quantum theory.
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It is not clear to me what is the status of superposition in each interpretation. For instance, if I google I don't get much talk about it. Is superposition tied to probability or can be considered as separate.
 
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Superpositions of quantum states exist in a multidimentional Hilbert space and they are not observable. Most every interpretation treats them differently - from ascribing a real world status(e.g. some forms of the MWI) to being nothing but our ignorance before measurement(CI).
The multitude of many wavefunctions form a Hilbert space and the Schroedinger equation determines how a particular wavefunction evolves over time. When you solve the equation and apply the Born rule, you always get probabilities for classical-like results('particles').
 
I am slowly going through the book 'What Is a Quantum Field Theory?' by Michel Talagrand. I came across the following quote: One does not" prove” the basic principles of Quantum Mechanics. The ultimate test for a model is the agreement of its predictions with experiments. Although it may seem trite, it does fit in with my modelling view of QM. The more I think about it, the more I believe it could be saying something quite profound. For example, precisely what is the justification of...

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