The purpose for this Gist is to document for myself the steps to setup Arch Linux ARM on a Pi 3 with XFCE4 as the desktop environment. As well as, configuring XFCE4 to look like MacOS BigSur. Maybe someone else will find this useful/helpful.
NOTE: As of the time of this writing, ArchLinuxARM-rpi-armv7-latest has Xorg driver issues. Meaning, I was not able to use ArchLinuxARM-rpi-armv7-latest with a desktop environment. Just a black screen. I came to this deduction via trial & error and reading the Arch Linux ARM forums like here and here.
NOTE 2: Pay attention to $ and # when commands are shown. # indicates that the command needs to be run as root - - OR - - with elevated priveleges. $ indicates that the command is invoked as a regular user.