There has been the odd post on this subject in various threads in recent years.
Some years ago, ICAO looked at varying the geometric runway width limits by requiring actual aircraft Type demonstration to show a capability to operate from a given width standard.
As far as I am aware, only Oz took this up (without looking at my files, probably 20-25 years ago, and imposed a requirement for runway width testing).
Some aircraft have no problems, some have significant problems and possibly ought not to be operating from the standard runway width requirements ....