Budgie: how to install extra applets?

Ok so I want to install the app-launcher applet. What is the easiest way to do this?

I saw online that you can download all the applets but I’m unsure where to place them on my drive.

Any help will be very appreciated.

Also
I’m looking for the gnome Activities overview icon,

The one in the bottom left-hand corner:

overview icon

[https://linuxconfig.org/wp-content/uploads/2022/04/01-top-10-best-gnome-extensions-for-ubuntu-22-04-desktop.png]

Added budgie