> QM
> more intuitive explanation

Choose one

;)

Sorry, just adding some drama to the question, or arguably a realistic perspective, regarding your more philosphical statements on fundamentals of QM or postulates, or understanding goals. I'd add more to try to answer your questions if I weren't under-qualified from the get go, combined with forgetting entirely too much of my education.

What I can comment with some relevance on: continue your pursuit of better understanding, but alter your expectations, because intuition is usually a false friend with QM! E.g., the fun, if not overused, electron spin meme

Also adding the first paragraph from the introduction in an intro QM for undergrad physics students book (Introduction to Quantum Mechanics: 2nd Ed. by David Griffiths): > Unlike Newton's mechanics, or Maxwell's electrodynamics, or Einstein's relativity, quantum theory was not created - or even definitively packaged - by one individual, and it retains to this day some of the scars of its exhilarating but traumatic youth. There is no general consensus as to what its fundamental principles are, how it should be taught, or what it really "means." Every competent physicist can "do" quantum mechanics, but the stories we tell ourselves about what we are doing are as various as the tales of Scheherazade, and almost as implausible. Niels Bohr said, "If you are not confused by quantum physics then you haven't really understood it"; Richard Feynman remarked, "I think I can safely say that nobody understands quantum mechanics."

Physics, including QM, is a lot of explaining these "why" questions you ask via math. My very unsatisfying and generalized - possibly patronizing (if so, sorry, that's not the intent) - recommendation is that if you want to dive deeper and have a more satisfying or stable foundation for your understanding, look into more of the accompanying math!

Happy exploring!

^(Thanks, also, for a reminder to revisit my own study :)^)