There’s a setting that lets you bind it to some simple things, but also a 3rd party app called BxActions that allows for more functionality
There isn’t really enough information here to diagnose what’s actually happening, but that sure is weird
apt is a newer tool that combines the functionality of apt-get and apt-cache. It’s not as backwards compatible but has a nicer more human readable output
There’s a setting that lets you bind it to some simple things, but also a 3rd party app called BxActions that allows for more functionality