I took chemistry in 1978 and now as an adjunct professor the explanation of let us say two quantum states is the observer causes a collapse of the wave function. For a chemist to think when i take a TLC the reaction's wavefunction collapse to a product is too much. Let us say a color change and a reaction that works has a magenta milky precipitate. I set up an walk in and then I observe the reaction and the wavefunction collapses! Or a fly observes it ! Again, the Schoedinger equation does not define a collapse of wavefunction or what an 'observer' is -human or fly. So, chemists can monitor a progress of a reaction so Mutiple observations 'collapses the system in part. Schoedinger's cat half dead or half alive which originally to show the absurdity of some quantum interpretations.

So this explanation common in General Chemistry is not given anymore but just a discussion of probability and orbitals.

For the synthetic chemist-we choose not to think of this or multiverses but mist chemists think quantum is nuts and just an explanation of something that's a simplification of something that is more nuts and bolts. Any chemist out there willing to admit quantum chemistry works but is off