Step-by-step – Google Drive Client Flatpak Ubuntu 18.04 Installation

Installing

2. 2. Setting Up Flatpak

   How to Setup Flatpak on Ubuntu Bionic

   Flatpak Ubuntu Bionic Installation Guide

   Flatpak Ubuntu Bionic Setup

3. 3. Installing

   Then to Install Open Drive App on Ubuntu
   To Setup the Repo play:

   flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo

   For further Insight see the Flatpak Official Documentation.
   And after:

   flatpak install https://flathub.org/repo/appstream/io.github.liberodark.OpenDrive.flatpakref

   The Flatpak App Setup do Not need the sudo Command because then it Runs confined into a Sandbox.
   However, you’ll be Prompted to Authenticate with your User’s Admin Pass.
   Then Confirm the proposed Setup with ‘Enter’ and Wait patiently until the App is Downloaded, Built and Installed.