House of the Dragon : "the objective truth" 

For those who had doubts, yes Condal sees his version of events as the objective truth of the Dance of Dragons. That's why he insists on justifying the changes he makes on the grounds that the book is nothing but green propaganda, most of the time, as with B&C or Sunfyre. The changes he makes are the result of a search for the truth.

it is said in this article: https://www.cheatsheet.com/entertainment/house-of-the-dragon-objective-truth-targaryens.html/

Creator Ryan Condal called House of the Dragon “the objective truth,” at least as far as author George R.R. Martin’s creation goes.

“He wrote it as a fake history,” Condal said on Hero Nation. “It’s written from multiple different points of view. There’s another imaginary character named Archmaester Gyldayn that’s sifting through these primary sources trying to figure out what actually happened. It presents a big chance for a lot of invention and for us as the filmmakers to go through it and figure out what’s the actual story that we want to tell? We set out from the very beginning, we are going to tell the objective truth here.”