Changing the content of your /etc/lsb-release will change the look of neofetch.
After the video we know it is looking in the description. And even later we discoverd it looks in both lines.
Bottom-line : ensure both lines have your distroname
Let us investigate neofetch on carli 11
How to create an ascii logo
How to add your ASCII logo to the neofetch application
Creating our own Carli-neofetch package with our ASCII logo
LSB-release and a pacman hook to have our logo – always