Step-by-step – QTox Debian Bullseye Gnu/Linux Installation

Installing

2. 2. Setting Up Flatpak

   How to Setup Flatpak on Debian Bullseye

   Flatpak Debian Bullseye Installation Guide

   Flatpak Debian Bullseye Setup

3. 3. Installing

   Then to Install qTox Flatpak App on Debian Bullseye.

   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.qtox.qTox.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 and Installed.