Can you give us any details on anything you were running, trying to configure, something you were installing or anything that you removed prior to the desktop reaching this state?
If you used the terminal, you can read your history from the ~.bash_history
file in your home directory or directly in terminal with the command
history
If you use zsh or fish, you will need to reference that history file instead. I would reference ~.zsh_history
instead on my computer.
For looking at all dpkg
history, you can check /var/log/dpkg.log
where the date of the action precedes the action in the file. Most recent will be at the bottom of the file. If you have in mind a date when all this began, you can examine what was upgraded, installed or removed in the range of prior to that date.
At this point, I am at a loss and wondering if reinstalling Zorin OS is your only option. Hopefully, the logs above may provide more clues.