Red Hat is based on Fedora, not the other way around.

You sure about that?

From your own link, Fedora:

…is now the upstream source for CentOS Stream and Red Hat Enterprise Linux.

So yes, I’m pretty sure.

I don’t think “upstream provider for newer packages” is the same as “based on”. Fedora was developed from Red Hat, the image is correct in that sense. You can quote that part of the link but I specifically pointed to " It was originally developed in 2003 as a continuation of the Red Hat Linux project." so based on Red Hat.