experiments that show the otherworldly character of quantum physics, someone would call it also manyworldly

Two-slit ecperiment (conigli di schroedinger ?)

Interferometro di Mach-Zehnder (beginning of infiniti Deutsch, but also https://it.m.wikipedia.org/wiki/Interferometro_di_Mach-Zehnder#

kw: interference experiments -> link: https://www.nature.com/articles/d41586-018-05892-6 Two slits and one hell of a quantum conundrum, book by Philip Ball

The Bomb Experiment explained by Sabine H. http://backreaction.blogspot.com/2021/08/why-is-quantum-mechanics-weird-bomb.html “quantum mechanics tells you something about the path that the photon didn’t take. That’s the sense in which quantum mechanics is truly non-local and weird. Not because you can’t observe the wave-function. And not because of entanglement. But because it can tell you something about events that didn’t happen”