No Libraries listed

How come Libraries is not listed in my Audacity? I clicked on Edit and then Preferences but the listing did Not include Libraries.
Also I downloaded and installed both LAME and FFmeg but in Software Manager it says Launch after I install but clicking on Launch has no effect.

The package maintainers for Debian / Ubuntu build Audacity with the “–disable-dynamic-loading” option. This links the Audacity binary to the system version of Lame and FFmpeg rather than loading those libraries dynamically. Consequently there is no “Libraries” option in Preferences.

The short version: Lame and FFmpeg are automatically available to Audacity.