I haven’t distro hopped much in the past few years, so I am near clueless. I know that Linux Mint has a graphical updater and I vaguely remember openSUSE having it, though I’m not so sure on that one, because as I mentioned, it’s been a while. Especially curious if any Arch-based distros have it.
I use bearhub which is a fork of bauh as a graphical updater on Arch when I need one (fairly rare but can be handy)
KDE’s discover is not recommended on Arch but I can’t recall why.