Нашла фаил readme. Там написано: Until now, all components is installed completely. You can run "WPS Office
Writer" by type ./wps, "WPS Office Presentation" by type ./wpp, "WPS
Office Spreadsheets" by type ./et.
If you need extra fonts, you can run './install_fonts'. The script will install
fonts to a suitable directory, /usr/share/fonts/wps-office in root user, or
$HOME/.fonts/wps-office in other user. You can remove directory mentioned above
so that to remove these fonts. (Executing fc-cache is required in some
distributions.)
Что именно нужно делать? В папке /usr/share/fonts/ WPS-office отсутствует.