I find that many Linux users have a misconception about immutable distributions without knowing what it actually is. There is a lot of misinformation and generalization in the Internet about immutable distributions being “locked down”, “inflexible”, etc., when we could argue the same with many traditional distributions. In this article, we’ll look at what makes an immutable distribution, the concept of an immutable distribution versus implementations, misconceptions about immutable distributions (both pro and con), and why they exist in the first place.
Fedora is, at least in theory, 100% community maintained and owned.
Red Hat sponsors this project (developers and money), in the hopes, that most of it gets upstreamed to RHEL, acting as a "testing ground".
It happened often, and will happen again many times, that the Fedora team decides against interests of RH.
It's a great symbiosis: we, as a community, get an extremely well maintained and professional distro, and RH gets feedback.
Also, side note, the "advertisement" of the RH-ecosystem works. If it weren't because of CasaOS (the web interface and docker management), I would use Almalinux (RHEL clone) instead of Debian, since I'm just used to Fedora and feel more confident in it.