So before when I was using openSUSE, the one thing I liked about zypper was the simple
`zypper search [keyword]` command that made it so easy to find a installed app. But for apt, I have yet to find one that is on the same level as zypper search. I have tried `apt search [keyword]` , `apt-cache search [keyword]` & `apt-file search [keyword]` but for some reason it wont find appimages or flatpaks that I know for a fact are installed. (atleast as far as I know, I am a command line newbie so Im pretty ignorant to it all). Maybe Im asking for too much but if you can help me out or point me in the right direction, that would be rad.

Thanks in advance

[This picture is an example of the zypper command at work with a little explanation on what it does, hopefully that will help.](https://i.stack.imgur.com/q1UGf.png)