When installing zorin, there was an option to also join a windows domain, but i didnt used it. I just ignored it.
However, after finishing installing, i wanna take another look at it...but cant seem to find it anywhere!
I came across Cid tool works well, I tested on fedora, Ubuntu, mint, zorin and other distributions, it's user-friendly, it gives the joining domain process like in Windows, plus you can choose the OU where to put the machine. Here is the link: https://cid-doc.github.io/
Naming the computer using your organisation machine naming convention, same like in Windows.
Configuring valid DNS Servers on your Zorin computer
sudo add-apt-repository ppa:emoraes25/cid
sudo apt update
sudo apt install cid cid-gtk