Okay, so: I don't need to make a new EFI partition, just mark the partition in Zorin (not sure how since I'm new to Linux, but honestly just wanna move to it.) then DON'T format it and should be done.
Mhm. You would be setting the partition as a mount point in the installer, as /boot or /boot/efi. Refer to https://help.ubuntu.com/community/UEFI
I honestly can't thank you enough for your support! :)
Not a problem, finding all this stuff quickly can be daunting for beginners. I'm glad you were able to follow along. :)