When you look at the information available on the Arch Wiki they recommend we use Openbox as the window manager for LXQt.
They also say it is possible to choose another window manager if you want. More information can also be found on the github of LXQt.
In this video we will install xfwm4 and use it instead of Openbox.
sudo pacman -S xfwm4
The main advantage is that we can now tile our windows in quarters and halves by just dragging them to the sides or corners of the screen.