2 points
I mean by that logic Nextcloud is just a rebranded skin of Owncloud and Libre Office is just a rebranded skin of Open Office. I’m sure someone can chime in with a more damning real world example but the important distinction with a fork is not “do they entirely replace most of the codebase” but instead it’s “how well do they maintain the project” and “how much value do they add through improvements and features”