Actos Dashboard is a QML KWin Script that manages windows, activities and starts applications.
It is inspired by Gnome Shell's Activities view.
plasmapkg --type kwinscript -i .
You can enable or disable the plugin, after installation, using System Settings, under Window Behaviour › KWin Scripts.
After installing the script and activating it, it will display an icon in the top-left corner of your screen. When the icon is clicked, or when you push the cursor in the top-left corner, the Dashboard will appear, minimizing all open windows and covering the entire screen.
You can also open the Dashboard using the Meta + A keyboard shortcut.
Once the Dashboard is open, you will see three main icons in the left side of the screen representing Windows, Applications and Activities. When searching by typing text in the top-right search box, a fourth category, Search, will appear, where you can see the various search results.