Language icon is missing from the Cinnamon settings! (Debian 11 installed with Cinnamon)

Working in a multicultural environment, I recently needed to switch the language displayed in my computer GUI (Debian 11 installed with Cinnamon). And I did not manage to do it easily! I have been searching around for a while to find out how to add an additional language to my new Cinnamon installation. Obviously, reading from the internet, there should be a **Languages icon** in Cinnamon **System Settings** panel. But this icon does not exist on my installation. Where did it go? **How can I have it back?** The workaround I used: - Close the Cinnamon session and open a Gnome session - Go to the Gnome system settings, choose the Country and Language menu, and select the language. - Then go back to a Cinnamon session