Ask HN: Kubuntu or Debian+KDE?

I am currently in the market for a new Linux distro and I would like to hear the HN community's take on it.

I have been thinking about choosing Kuduntu or Debian+KDE.

I find it really hard to come up with any pros and cons.

I came up with this solution:

They probably give me the same experience, but since with Kubuntu there are 3 vendors involved (updates travel from Debian to Ubuntu to KDE) and for Debian+KDE only one vendor is involved (Debian), Debian+KDE is probably leaner and will make less problems.

Any Hacker News grade thoughts on this?

These are the two installers I have in mind:

"debian-live-11.5.0-amd64-kde+nonfree.iso" from this page: https://cdimage.debian.org/cdimage/unofficial/non-free/cd-including-firmware/current-live/amd64/iso-hybrid/

Or "Kubuntu 22.04.1 LTS" from this page: https://kubuntu.org/getkubuntu/

My idea is to install only the terminal version and then do: apt install kde-plasma-desktop

So I don't get Kmail and the other KDE applications. I don't need those as I use Firefox and Thunderbird.