Is GitHub Desktop available on Ubuntu?

you could just download the installer and see if it works.

but you can also install the command line version of git, so you are not restricted to github, and since you can paste the url into terminal, there isnt a real problem.

But whatever floats your boat m8.

I will try to install it now for you, give me 5 minutes

edit:

Doesnt seem to be working, he opens it in a bowser or something.

No it doesnt work.

Currently, Github Desktop for GNU/Linux is not officially supported by GitHub, but there is a fork which hosts a version for Ubuntu.

Add the the package repository to your system.

 sudo wget -qO - https://packagecloud.io/shiftkey/desktop/gpgkey | sudo apt-key add -

 sudo sh -c 'echo "deb [arch=amd64] https://packagecloud.io/shiftkey/desktop/any/ any main" > /etc/apt/sources.list.d/packagecloud-shiftky-desktop.list'

 sudo apt-get update

 sudo apt install github-desktop

Or you can directly grab the .deb package from https://github.com/shiftkey/desktop/releases