Probably not. However, I do believe Fedora and Debian configure and patch out the most egregious Mozilla-isms that infect Firefox already.

IIRC Red Hat now just ships the Firefox ESRs and does not support a single version for the entire life of a RHEL release. You probably wouldn’t want a 10-year old browser anyway. And, in RHEL 10, they have stopped packaging Firefox in favor of a Flatpak.