Thank you for the thorough response. Follow up commentary in the next posting.

Check this GitHub issue

I experienced a related issue when using a Mac with an extended keyboard. A button with .keyboardShortcut("5", modifiers: []) would trigger when using "5" on the numeric keypad, but would trigger an older action associated with "5" when using the numeric keys along the top of the keyboard. Adding localization: .withoutMirroring fixed the issue.