Disable Ubuntu user direcories localization. Just run it and press Update Names to change the names to english.

langdirfix.sh

#!/bin/bash

if [ ! -f "${HOME}/.config/user-dirs.dirs" ]; then
  echo "No user-dirs.dirs found, will not proceed"
  exit
fi

if [ ! -f "${HOME}/.config/user-dirs.locale" ]; then
  echo "No user-dirs.locale found, forcing generation of current-locale one"
  xdg-user-dirs-update --force
fi

if [ "$(cat ${HOME}/.config/user-dirs.locale)x" == "Cx" ]; then
  echo "User-dirs are already in C locale, no need to migrate"
  exit
fi

source "${HOME}/.config/user-dirs.dirs"

TARGET_DESKTOP=Desktop
TARGET_DOWNLOAD=Downloads
TARGET_TEMPLATES=Templates
TARGET_PUBLICSHARE=Public
TARGET_DOCUMENTS=Documents
TARGET_MUSIC=Music
TARGET_PICTURES=Pictures
TARGET_VIDEOS=Videos

function migrate_user_dir {
  echo Moving "$1" to "$2"
  mv "$1/*" "$2" 2> /dev/null
  rmdir "$1"
}

migrate_user_dir "$XDG_DESKTOP_DIR" "$HOME/$TARGET_DESKTOP"
migrate_user_dir "$XDG_DOWNLOAD_DIR" "$HOME/$TARGET_DOWNLOAD"
migrate_user_dir "$XDG_TEMPLATES_DIR" "$HOME/$TARGET_TEMPLATES"
migrate_user_dir "$XDG_PUBLICSHARE_DIR" "$HOME/$TARGET_PUBLICSHARE"
migrate_user_dir "$XDG_DOCUMENTS_DIR" "$HOME/$TARGET_DOCUMENTS"
migrate_user_dir "$XDG_MUSIC_DIR" "$HOME/$TARGET_MUSIC"
migrate_user_dir "$XDG_PICTURES_DIR" "$HOME/$TARGET_PICTURES"
migrate_user_dir "$XDG_VIDEOS_DIR" "$HOME/$TARGET_VIDEOS"

rm "${HOME}/.config/user-dirs.locale" "${HOME}/.config/user-dirs.dirs"
LC_ALL=C xdg-user-dirs-update --force

# Remove locale to preserve changes
rm "${HOME}/.config/user-dirs.locale"