Most desktops offer the user a way to autostart applications. LXQt has also an application.
You can find it in Session Settings.
We add plank to the autostart.
Only after clicking the close button is your new autostart setting saved
We install the applications needed to have plank
sudo pacman -S plank
sudo pacman -S arcolinux-plank-themes-git
sudo pacman -S arcolinux-plank-git
We acted a bit to fast and typed skel in our terminal.
This means the settings from /etc/skel are copied over to the home directory and after a reboot we see the standard ArcoLinux look is back.
We show you how easy it is to get our tweaked LXQt back. Remember the application meld. As developers we use it all the time to compare files and folders.