Dreamworks Dragons [How to Train Your Dragon] timeline?

The current timeline of the films and series looks like this or?:

How to Train Your Dragon (1st movie)

Dragons - the riders of Berg

Dragons - on to new shores (Netflix)

How to Train Your Dragon (2nd movie)

How to Train Your Dragon (3rd movie) - The Secret World

(have I forgotten anything or are there additions?)

Now the question, is the series "The Riders of Berg" relevant for the following films and series? (in the second part I did not feel like I missed something…)

How to Train Your Dragon is not from Disney, but from Dreamworks.

F ***! (excuse my expression) because I did not pay attention…

No problem. You never stop learning.