Unity tutorials and latest versions: ex: Image Effects: Overview

Hello,
I'm quite new to Unity and while some tutorials work fine like the Tank and the Space Shooter, and even have info to adapt them to the new Unity version, others do not work at all.

Example: the "Image Effects: Overview".
https://unity3d.com/fr/learn/tutorials/topics/graphics/image-effects-overview?playlist=17102

When loading the scene it does not have all the scripts, granted the "teacher" tells at some point to download them, and I saw the readme explaining those are obsolete.

And indeed, when running those scripts (well I stopped at the fog one), they do not work at all the same way as shown in the video.

Same goes with the hover car demo, most of it is working, but some of the effects shown at the end do not work the same.

Please at least add a warning at the top of those tutorials when they are too obsolete or add info on how to make them run in the new versions.