Finder not showing DVD/CD drive even when it is checked in the Preferences I am playing a DVD so it's definitely &quot;understood&quot; by macOS to be present. But not by Finder ?

I tried unchecking and re-checking  the CDs, DVDs and iPods: no change.  I have also rebooted the system a few times: the behavior persists.   What can be done here?    I am on Catalina 10.15.3
Update  The DVD drive is found without any issue on the command line: the following works:
diskutil eject /dev/disk2 .
From comments, it seems like a simple 'wrong pref'.
The pref in the posted image is for Desktop visibility.
To show in the Finder sidebar, the one required is in the 3rd tab, Sidebar.