I guess there's (at least) two ways to understand "stable":
- things don't break
- things don't change
(... unless absolutely necessary, in each case)
To me, "things don't break" describes Fedora stable releases (as opposed to
rawhide), and "things don't change" describes RHEL.
A typical Fedora user wants the latest if it works and should be prepared to adjust to the
changes this brings with it (but not to rawhide-type breakage). A typical RHEL user wants
a stable environment for reproducible computing (short of containerizing and freezing for
reproducibility).
On a side-note: This is why Fedora packagers are sometimes hesitant to build for EPEL
because it means going by a different notion of "stable".