GNU/Linux Debian Bullseye Installing GNOME Extensions App – Step by step Guide
How to Install GNOME Extensions Flatpak App on Debian Bullseye 11.x GNU/Linux desktop – Step by step Tutorial.
And GNOME Extensions App for Debian 11 handles Updating Extensions, Configuring Extension Preferences and Removing or Disabling them.
Especially relevant: starting from the GNOME 41 release the Shell Extensions are not any more manageable by the Tweaks but just with the App.

1. Launching Terminal
Open a Terminal window
(Press “Enter” to Execute Commands)
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