To elaborate further on what Vani said below, Fedora is an independent community run project but Red Hat does provide some funding to the project. Fedora is also "upstream" of RHEL / CentOS so it is not impacted like Alma / Rocky.
The most likely problem that may occur with Fedora because of RHEL's change is that some developers may just stop building RPM packages entirely. Whether it's a big enough issue to worry about, only time will tell