This is going to be a rare situation but it sure was confusing. A customer had added the Everyone group to a process and wondered why everyone did not have access.
Well someone was able to create a Laserfiche group named "Everyone" in Admin console and in Forms it looks almost exactly the same, except the text in the username column for the built-in group is different.
In normal circumstances we can not have 2 groups with the same name and I think the same should be applied for the name Everyone including the built-in group. At least make them name it something like Everyone2 so that it stands out if they are going to do it.