My recommendation would be Debian + Flatpak & Appimages (or + Snaps if you’re the devil). Super stable, but also access to the latest.
Fedora is also a middle ground too, but they’re pushing flatpaks heavily so it might not matter anyway since Fedora + flatpak and Debian + flatpak are about the same.
Sorry I thought they were a separate thing. Thanks for bringing it up.