The snap package repository for WPS 2019 version is available at https://github.com/cyrpaut/wps-2019-snap This repository remains as a Legacy for 2016 version of WPS Office.
This is the snapcraft file to create the wps-office-all-lang-no-internet package available from the snapcraft store at: https://snapcraft.io/wps-office-all-lang-no-internet
This is made out of moving the content of the official https://snapcraft.io/wps-office package installed from snap in the wps-office-bin/ folder of this repository. The languages locale have been taken from the Windows WPS version installed with wine on my computer. The content of the wps-office/office6/mui/ and wps-office/office6/dictionnaries/spellcheck have been added to the corresponding folder of wps-office-bin/ of this snap package to gain international translation.
In order to insulate this program from the internet, the internet plugs present in the original snap package have been removed.
Enjoy using WPS Office without the fear of chinese backdoor!