

Bazzite or an immutable if you do gaming and don’t need a lot of special functionality (e.g. network scanning doesn’t work, document signing doesn’t work and will never work, managing gpg keys, embedded firmware development, Belgian EID, etc…)
Mint if you don’t have a brand new system and just want an easy experience.
Arch if you want all niche software to simply be available through the package manager and never have to find rpm/deb packages.
Debian for a server (or maybe opensuse MicroOS nowadays)
Opensuse if you really want an EU OS or something very integrated with a snapshot system.
And of course, Hannah Montana Linux if you are enlightened.
Maybe people have gotten Saned for network scanning working on other things than bazzite, but I can’t figure it out and the discord is never helpful.
But document signing is a technical limitation caused by flatpak. You can technically do it by installing your entire office and authentication suite on a rooted distrobox, but then that is defeating a fair amount of the point of ease of use and sandboxing. I haven’t tested that though so even that might have some bugs or not work.
There are but trackers on different upstream flatpak software for it like Firefox, but it has been completely dead for 5 years with no plans on looking at it.