For Kubuntu, you can mostly follow the Ubunutu guide, with a couple extra steps. This may also be useful for other distros running KDE Plasma desktop environment.
Disk encryption
If you want full disk encryption, it’s available in the Kubuntu installer, but it is a small and easy to miss checkbox just above the bar chart on the disk partitions page
Auto-rotate fix
When applying the auto-rotate fix script, you’ll see a notice about an additional command needed before it will take effect: systemctl daemon-reload (or a full restart will work as well)
On-screen keyboard
The virtual keyboard has to be installed and configured manually
sudo apt-get install maliit-keyboard- Open System Settings → Keyboard → Virtual Keyboard and select Maliit
