>After searching for Calibre on Ubuntu Software and finding the page, I
pressed the "Install" button.
Ok, have you tried to remove the package through Ubuntu Software? Is it still listed as installed there?
I am still curious about the output of `apt policy calibre*` and `snap list | grep calibre`. If you have installed calibre as a snap, then apt wouldn't know about it and thus wouldn't know how to uninstall it.
>After searching for Calibre on Ubuntu Software and finding the page, I
pressed the "Install" button.
Ok, have you tried to remove the package through Ubuntu Software? Is it still listed as installed there?
I am still curious about the output of `apt policy calibre*` and `snap list | grep calibre`. If you have installed calibre as a snap, then apt wouldn't know about it and thus wouldn't know how to uninstall it.