The restorations of Spartacus and My Fair Lady retain their full panning dialogue-especially Spartacus. Prior to this they only had it to varying degrees but for the 7.1 new mixes they left the full panning width.
There's a number of others but I can't think off the top of my head. I should've started a list myself ages ago! 2001 on the original mix pre WB DVD has a little for example.
Damn Fool Idealistic Crusader
I personally appreciate it when it is an inherent choice in the original conception of the film...it's disturbing to me when it's done in the remastering to a legacy movie just for the sake of doing. Alfonso Cuaron has used it in a lot of his films for a purpose....Children of Men, Gravity, Roma. It served Uncut Gems well too with its chaos...helped to distinguish all the overlapping Altman-esque dialog. Not unusual that Skip Lievsay handled the sound design on all those films except Children of Men. It's also a much more elegant technique in modern soundtracks as opposed to older films...it can draw a lot of unnecessary attention to itself in older films because of the primitive techniques. I need to familiarize myself with more super early examples...admittedly, I have not seen Spartacus or the My Fair Lady examples you're mentioning here...