Labels are important and I think progress on Everett QM (or, maybe “unitary QM”?) has been held back by the label “Many Worlds Interpretation”.

“Worlds” is inaccurate since there is still only one world (the ordinary, uncontroversial, tensor product Hilbert space of textbook qm). It the stuff in the world that enters into superposition, among which stuff are the atoms making up “observers”.

Similarly “completion” would be a better word than “interpretation”.