Please roll back to the previous kernel you were on by tapping esc or tab if needed to access the Grub menu.
Select Advanced Options for Zorin and select the option for Zorin on 5.15.0-... kernel that is previous to the first one listed.
Do not choose the (recovery) option at this time.
If the previous kernel is working properly on your AMD graphics, you can uninstall the latest kernel or use this post to lock in your kernel on the working one: