Kleopatra (ubuntu) vs. kleopatra (Flatpak) vs. kgpg

If I’m not mistaken, Kde now owns Kleopatra. I’m curious about which package offers the most secure version of Kleopatra or kgpg? From what I’ve been able to read, Flatpaks in general do not work good with the sandboxing, or user namespaces, therefore being less secure. I’ve also noticed that Kgpg and Kleopatra (Ubuntu) seem to be pretty behind on updates, so I’m just not sure what the better choice would be to install on my Kubuntu 24.04 computer.