K ali works differently from the others as it has the security tools in the root of the app launcher. If you know what you’re looking for, the whole thing is searchable from the launcher. The ‘normal’ apps are located in the Usual Applications folder, and sure enough, the security tools are absent from here. The security tools are organised into 13 numbered categories, many of which have subfolders.
As with all of these distros, Kali has a mixture of commandline and GUI tools, and if you click on a command-line tool, it opens a new terminal window. However, it’s not always obvious at a glance whether you are dealing with a GUI application as many of the command-line tools also have an icon. None of the distros handle this perfectly.