If there really isn’t enough space in the EFI partition, you will see an error message when it attempts to install booting. But it only needs around 2M of space in that partition, and you are likely to have at least that much.
I guess I gotta ask: Why is is it throwing an error/warning on space requirements if >2 mb is really enough space? Just gets people upset. Some programmer trying to amp-up their importance?
All Linux distributions recommend between 100MB (125MB for openSUSE) and 500MB for the efi partition. 2MB are not enough if you have more than one kernel or distribution installed. As the efi partition is in most cases the first partition on a disk, it is hard to resize it later on. That’s why nobody with a sane mind would only recommend 2MB for the efi partition.
Just increase the efi partition if the whole disk drive is still empty.
I have two os. on my desktop, each has it’s own efi partition with 260 MB each.