Regional indicator code points do not properly merge into flag emojis. Example: echo -e '\U1f1ef\U1f1f5' https://i.imgur.com/5UvnGQW.png Expected: 🇯🇵 (Japanese flag) https://i.imgur.com/oZJIKmC.png
Forwarded upstream to https://gitlab.gnome.org/GNOME/vte/issues/162.
Thank you, Egmont! The issue belongs to vte and not to xfce4-terminal.