OK, I'm still in same situation.
Even after editing Grub timeout to 10 seconds, I still can't get into grub on boot.
I always get the kernel panic.
It really could just be my inexperience with Linux.
But I do want to move forward.
What is the best way to re-install?
Can I save my environment? If not, I think I can survive that, but I would like to be able to save my data (like save game files).
Should I run the Zorin install from a Zorin USB, or is it better to use Ventoy?