Huh, I thought that the MS tutorial was older. The blurry screenshot in it is from 2023.
And there ist another website with the same content (including the sloppy diagram). I had assumed that they just plagiarized the MS tutorials. Maybe the vendor who did the MS tutorial just plagiarized (or re-published) this one?:
https://techhub.saworks.io/docs/intermediate-github-tutorial...