What is the quake mode? (Sorry for asking...)
Gnome
The GNOME Project is a free and open source desktop and computing platform for open platforms like Linux that strives to be an easy and elegant way to use your computer. GNOME software is developed openly and ethically by both individual contributors and corporate partners, and is distributed under the GNU General Public License.
" Guake is a top-down terminal for Gnome, and is highly inspirated by the famous terminal used in Quake .
You can instantaneously show and hide your terminal with a single key stroke, execute a command, and then go back to your previous task without breaking your workflow. "
I use ddterm, which is pretty much the only remaining drop-down terminal extension. https://extensions.gnome.org/extension/3780/ddterm/
Unfortunately is no longer maintained :(
It's maintained on GitHub, so you might be able to manually install it or find a package for it in your package manager. At least on Arch you can install gnome-shell-extension-ddterm-git
from the AUR.
Have you seen Guake? That's pretty much what you're looking for. http://guake-project.org/
That's very good! But the dev don't want to add animations. I really wanted it to roll top down, like in quake.