Trying to put a menu item at the beginning of an existing menu using perl-Gtk3, $menu->prepend($menu_item) appends the item at the end of the menu, not at the beginning. Per https://developer.gnome.org/gtk3/stable/GtkMenuShell.html#gtk-menu-shell-prepend, this should work.
Assigning to the registered maintainer of perl-Gtk3
Assignee: bugsquad => thierry.vignaudCC: (none) => marja11
Assigning back to the one that altered the code. That's either an issue with your code or a gtk+3 issue, but not a perl-Gtk3 one which is just a translation layer on top of gtk+3 introspection data.
Source RPM: perl-Gtk3-0.32.0-2.mga7 => (none)Assignee: thierry.vignaud => LpSolit
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Assignee: LpSolit => bugsquadStatus: NEW => RESOLVEDResolution: (none) => WORKSFORME