Charanor's answer to your previous question already covered this point https://gamedev.stackexchange.com/a/212552/174134
However for clarity in the video (you cited above):
- Dynamic - Green
- Kinematic - Blue
- Static - Red
The effect when two objects "interact" depends on their types:
| Ob 1 | Ob2 | Result |
|---|---|---|
| Green | Green | Collide: Both objects velocity is changed |
| Green | Blue | Collide: Only Greens velocity is changed |
| Green | Red | Collide: Only Greens velocity is changed |
| Blue | Blue | No interaction - they just pass through each other |
| Blue | Red | No interaction - Blue passes through Red |
| Red | Red | Not possible - neither object is moving ** |
** - If they were initially placed overlapping, there would be no interaction.
You can switch Ob1 and Ob2 columns - the result would be the same (hence I didn't bother with the duplicate lines).
Changing the cited lines:
Kinematic bodies do not react to forces and only collide with dynamic bodies.
Kinematic bodies do not collide with other kinematic or static bodies
To the colors in the video we get:
Blue bodies do not react to forces and only collide with Green bodies.
Blue bodies do not collide with other Blue or Red bodies
The video only shows interactions involving at least one Green body.