It is planned for F40, which will be there in 1-2 Months.
BUT, I already use F40 beta (Edit: alpha) on Atomic KDE.

Just install Kinoite normally, and then rebase to fedora:fedora/40/x86-64/kinoite (or however it is spelled) after typing rpm-ostree remote refs fedora and selecting the right variant.

I personally had a good experience in the last days with it and it feels absolutely usable.
Maybe wait until the stable release, then you can use uBlue, which gives you a saner configuration for the start.