Oh yes... definitely tried. And succeeded. I prefer several desktops over Gnome, XFCE being one of them. You can find several threads on this forum where this comes up.
If you like you can install xfce4 with one command in terminal
sudo apt install xfce4
If you want the latest xfce4 4.16, you will need to add the repo for it:
sudo add-apt-repository Index of /xubuntu-dev/staging/ubuntu
Then install xfce
sudo apt install xfce4
You can even install the Zorin OS App Menu as a Zorin OS user:
sudo apt install xfce4-zorinmenulite-plugin


