Hi @JustFOx,
It appears that there is a desktop-related error occurring with the panel, which is stopping it from moving to the bottom of the screen.
If possible, could you please send us a system log as an attachment to the email we just sent you? This would help us to troubleshoot the issue and find a fix faster for you.
how to get system log?
We have sent instructions on how to do this to your email address.
ok 
Thanks for sending the logs. Please try fixing the issue by opening the Terminal and entering these 2 commands:
sudo apt install --reinstall gnome-shell-extension-zorin-panel
list=$(gsettings list-keys org.gnome.shell.extensions.zorin-panel); for i in $list; do echo "resetting $i"; gsettings reset org.gnome.shell.extensions.zorin-panel $i; done
Afterwards, please log out of your user account and log back in again to refresh the desktop.
thanks
JustFOx, Azorin also cleared up some of the XFCE confusion.
In trying to help you to easily and quickly find out which desktop version you have, I suggested you type “XFCE -about” as I believed it would merely say “command not found” in Gnome and give a popup window giving XFCE information in XFCE.
That is not what it did. It failed to find the command, but offered to install the application necessary to run it. Creating that confusion is my fault.
I did not expect that it would offer to install the application. I know now that is not an easy and fast way and will not use that again.
If you like, you can run in terminal
sudo apt remove --purge libxfce4ui-utils
to remove that Not Needed application from Zorin Core.
Glad to know the panel is fixed and to understand the cause.