It really surprised and disappointed me recently that native macOS apps have the same problem outlined here. For example, the standard system-wide ‘back’ shortcut (e.g. in Safari, Finder, Preview) is Cmd+[, but this is inoperable in many keyboard layouts that don’t have any key that produces [ without modifiers.

(For context: I was writing a simple mouse gestures utility that sends that keyboard shortcut to accomplish backward navigation for an appropriate gesture, but discovered this to be unreliable across keyboard layouts).