Use Rescuezilla (https://rescuezilla.com/) - it can backup your entire system and clone drives - not sure if it has to be the same size. For example, I had to clone a 1 TB HDD to 1 TB SSD of Windows 11 using Rescuezilla for a family member - no problem with it. Alternatively you could try clonezilla as outlined in this article:
Rescuezilla is a live Linux image meant to clone your partition(s) for reinstallation. You will probably have to format the usb drive as ext4, but otherwise it is rather simple. If you create a Ventoy usb, you can add zorin 16.2 and rescuezilla by dropping them into the drive. Not rescuezilla to save and restore the Zorin image.