Yes, there are plenty of visual content available, but I feel none give a full picture of how to make a song from start to finish in one single video.

I have done a TeamViewer session with a friend today to show basic navigation and workflow of BIAB. He was blown away. I got tired too, showing as much as possible in 30 minutes we were connected.
Maybe selfish, but I feel that one of the videos I requested, that Kent made is one of the best subject related recent videos posted:
https://youtu.be/Fo9sben5x1M

I do think it is a good idea to have a tutorial on making full song, not fragmented video clips, explaining on the way, basic tools, options and techniques. Not only it will introduce basic operation to new users, but should give a general sense of what the program is capable of in single video for future buyers (I believe demo is not available for BIAB)

Perhaps: Beginner, Intermediate, Advanced with a dedicated tune for each video?
I suggested similar some time ago in different context.

P.S. After many (many!) hours I spent with program, I feel that I only know a fraction of what BIAB can do. So will gladly watch Intermediate and Advanced smile