This has been an interesting read. A lot of ‘Interesting’ responses. In my system, in my room, Playing ‘Money for Nothing’ I can hear that Sting is behind Mark Knopfler and just to the right. - I cannot make that out on most systems - This is from the 80’s and is a (Rock - sort of) track.
So, yes, depth is real and it depends on the recording and primarily the sound engineer’s skills.