I am currently using EndeavourOS, but am annoyed by the constant daily updates of 1GB and pacman not installing important dependencies automatically (ex: spell checker for document editor). I like the way Fedora works: you update whenever, important dependencies are downloaded automatically, and packages are recent-ish, but I don’t like that it takes forever to run dnf. I don’t want to use Manjaro (apparently it breaks quickly?), and the distro needs to support KDE. I know about Flatpak, but I don’t want to download 1GB of data for each app. Are there any good options?
(Yes, I can probably deal with Fedora, but dnf is slower than apt, and I don’t want to deal with external repositories for non-free software.)
EDIT: I do not want to tweak or edit configuration files, I just need something that has up to date packages and “just works”.
Check out ublue. They have Silverblue/Kinoite images with some extras to make it a more usable without having to layer it yourself. It updates in the background and you get the new version whenever you decide to reboot. It keeps a few snapshots so you can rollback right in the grub menu. You can even run an Arch container on top of Kinoite with distrobox and get apps from there. Or you can fork their image and make your own immutable OS.
^This. I run ublue-kinoite with Arch distroboxes for dev. Rock solid, implicitly rollback-able main OS with the AUR in your pocket. What’s not to love?