This broke as a side-effect of https://github.com/electron/electron/pull/19159, so it's broken starting in the April 2 nightly of 14.0.0 up to now.

Current behavior is that, instead of dialog buttons having text such as `Open` or `Close`, they read `gtk-open` or `gtk-close`.
shell/browser/ui/gtk_util.cc
if (!gtk::GtkCheckVersion(4))
    return "gtk-save";  
  static const char* save = GtkGettext("_Save");
  return save;
}
const char* GetOkLabel() {
  if (!gtk::GtkCheckVersion(4))
    return "gtk-ok";  
  static const char* ok = GtkGettext("_Ok");
  return ok;
}
const char* GetNoLabel() {
  if (!gtk::GtkCheckVersion(4))
    return "gtk-no";  
  static const char* no = GtkGettext("_No");
  return no;
}
const char* GetYesLabel() {
  if (!gtk::GtkCheckVersion(4))
    return "gtk-yes";  
  static const char* yes = GtkGettext("_Yes");
  return yes;
}
GdkPixbuf* GdkPixbufFromSkBitmap(const SkBitmap& bitmap) {
  if (bitmap.isNull())
    return nullptr;
  int width = bitmap.width();
  int height = bitmap.height();