So I did not get that beautiful preview for my brick texture that was shown in the video. I am using Blender 3.6 and here is my preview:
The same thing happens in 4.1 alpha. I could not test this with 3.5 because it crashes when I open the file and I do not have time to recreate the material in that version.
The render of the material seems fine, that looks much better.
That would cool if anyone can give some advice how can i preview this material better in Blender 3.6 and above.