have you guys see the 3d workspace changer can manjaro do that

these cube effect

That depends on the version of Gnome it is made for

Any custom AUR script requires unstable branch
Any custom AUR script is unsupported - you are on your own

sudo pacman-mirrors -aS unstable
sudo pacman -Syu base-devel
pamac build gnome-shell-extension-desktop-qube

Google compiz, for example. Such effects are job of a desktop compositor. But you have to install and configure it.

It is a Gnome Extension - look on the website whether it is available for your version of Gnome Shell.

I don’t use Gnome and don’t know the current version.