Multi-channel is, from my perspective, a gee-whiz, wow, isn't that cool gimmick, be it used in movie soundtracks or in music.
It is not
realistic, much less
real (again, from my perspective).
Indeed, as I reflect upon the topic, I would think that it would be straightforward in 2022 AD (or CE, as one prefers), to measure quantitatively and objectively, some significant aspects of the "soundfield" (maybe intensity as a function of location and wavelength, I don't know) in an actual venue of an actual musical performance, and then to compare that matrix of data, quantitatively and objectively, to the reproduction of a mono, stereo, or
x.y.z multichannel recording of the performance in an arbitrary domestic environment (i.e., somebody's hifi or HT "room") with commercial (domestic) hifi equipment.
I suspect the results might be
enlightening.