I have a lot of custom made shortcuts which I would like to backup how can one do this?

The keyboard shortcuts for MX-Linux xfce 21 are kept in ~/.config/xfce4/xfconf/xfce-perchannel-xml/xfce4-keyboard-shortcuts.xml and can be opened by nano ~/.config/xfce4/xfconf/xfce-perchannel-xml/xfce4-keyboard-shortcuts.xml

If you have folders in your laptop which are routinely backed up (my documents are routinely backup using rclone), you can make sure your keyboard file is backedup everyday by syncing an identical file created by you on a folder you like with the original file by adding this command to the crontab -e service.

43 23 * * * cp ~/.config/xfce4/xfconf/xfce-perchannel-xml/xfce4-keyboard-shortcuts.xml "/home/$USER/Documents/Linux/xfce-files backup/xfce4-keyboard-shortcuts.xml"