I know you said you want to use KDE, but Pop is actually working on their own DE, called Cosmic, to be released with the 24.04 version. It’s currently still in alpha, so it’s far from finished, but if you’re trialing other distros anyway I don’t think it would hurt to boot it up and explore it (at least for a few minutes)
Yeah I thought it would be a long shot but I thought i should mention it just in case, good luck finding a distro