In S08E06 of Game of Thrones we learn that
the Three-Eyed Raven, Bran, becomes King of the Six Kingdoms.
It seems that he at least somewhat expected this to happen based on his line,
"why do you think I came all this way".
One interpretation is that Bran became what was necessary and tried his best to save Westeros, and follow through in his new position despite not "wanting" anything.
Another interpretation however, is that an old imprisoned wizard in the wilds convinced people to bring a warg (or many) to him and then he took over the warg's body. He later rode south in order to save his own hide and to save Westeros in his best interest, and manipulated events so that he would
become King of the Six Kingdoms.
He could have likely prevented the destruction of King's Landing in E03 by predicting this would happen, or talking to Jon, or maybe even controlling a dragon, but he did not do these things. He did exactly the right amount to sit on the throne.
Is this all coincidence? Or did the Three-Eyed Raven purposefully plan things out so he would sit on the throne, even if it came at great cost to Westeros?