Prerequisite to Install KDE Plasma desktop on android 👉️ Termux
👉️ VNC Viewer

Installation: #Install proot distro

 $ pkg update; pkg install proot-distro  

#Install ubuntu with proot

 $ proot-distro install ubuntu 

#Login to ubuntu

 $ proot-distro login ubuntu 

#Update ubuntu

 $ apt update; apt upgrade 

#Install KDE Plasma desktop and tigervnc and dbus

 $ apt-get install kubuntu-desktop tigervnc-standalone-server dbus-x11 

#Start vncserver
Command removed click here to view

#Stop vncserver

 $ vncserver -kill :1 

Video source: HERE