Installing Xubuntu & Compiling RetroPie from source - Lenovo Thinkcentre M73 Tiny RetroPie - Part 2

Following up on my first video with the Lenovo Thinkcentre M73 Tiny Desktop. Today I will be installing the OS which is Xubuntu 20.04 LTS.
I chose this release as I am growing fond of the XFCE Desktop and want to avoid GNOME 3 like the plague. The directions should work on most distributions however I would like to point out that I tried on Ubuntu-MATE to no success. I am not quite sure what happened or what is different aside from choice in user interface.

I was following the directions outlined in the RetroPie Documentation found here:
https://retropie.org.uk/docs/Debian/

The usb controller I am using is an older version of the following:
https://www.8bitdo.com/sn30-wireless-for-original-snes-sfc/
Note I am not getting paid anything

After installation, I will test emulation of Sonic the Hedgehog 2 (1992) for Sega Genesis/MegaDrive then Super Mario Bros.(1985) for Nintendo Entertainment System (NES). For now I want to compare how the emulation works vs it's Raspberri Pi Counterpart. Part 3 coming soon