You can follow the instructions mentioned down below to install Libre Office.
Ubuntu/ Debian based Distros
You can install Libre Office on distributions that are based on Debian like Ubuntu, Kali linux and more by executing the following command-
sudo apt update -y && sudo apt install wget -y && wget https://raw.githubusercontent.com/AndronixApp/AndronixOrigin/master/Uninstall/librepatch.sh && bash librepatch.sh
Arch Linux based Distros
You can install Libre Office on distributions that are based on Arch like Manjaro and more by executing the following command-
wget https://raw.githubusercontent.com/AndronixApp/AndronixOrigin/master/Uninstall/librepatch_arch.sh && bash librepatch_arch.sh