An Immutable Version of Fedora is Under Consideration
According to the Fedora Wiki, Fedora Onyx is being considered for acceptance. This spin makes use of the same foundation technology found in other immutable versions – such as Fedora Silverblue, Fedora Kinoite, and Fedora Sericea – and is built for those who are looking for the immutability and atomic features that rpm-ostree provides.
Fedora Onyx will use the Budgie desktop environment and, according to the Wiki, has a target release of Fedora Linux 39.
For those who don't know, an immutable operating system is one that ensures the core of the OS cannot be changed and are typically used for testing and container-based software development. Immutable operating systems focus on security and tend to be future-proof.