I just finished my KDE install on my laptop with the new ISO and I was missing a few packages that where there before. I assume it’s intended, but for those coming here and wanting to know what to install to get those missing features back:
To get the option back to pick the GTK theme for GTK apps you need to install “kde-gtk-config” and then you also probably want to install “breeze-gtk” since by default it is now using the (in my opinion, very ugly) adwaita theme.
To get some other fancy stuff back, like, live wallpapers or more options with how you want the thumbnails of open windows to look when you press “ALT+TAB” you need to install “kdeplasma-addons”.
For bluetooth I had to install “bluedevil” so it would appear in System Settings.
That aside, good release and congratulations!