GNU/Linux Debian Installing GNOME Extensions App Guide
You are Welcome! The Tutorial Shows You Step-by-Step How to Install GNOME Extensions App Flatpak App in Debian GNU/Linux Desktops.
And GNOME Extensions App for Debian 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.