Inkscape Installation in Ubuntu 20.04 – Step-by-step

Installing

2. 2. Installing Flatpak

   How to Setup Flatpak on Ubuntu 20.04

   Flatpak Ubuntu 20.04 Installation Guide

   Flatpak Ubuntu 20.04 Setup

   To check if it’s already there:

   which flatpak

3. 3. Installing Inkscape

   Then to Install Inkscape App on Ubuntu 20.04
   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 org.inkscape.Inkscape

   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.