"Send a virtue that you think describes my muse best"
We don't have much info on Godwyn's canon personality, but one thing stands out to me -- despite being immersed in the corruption and oppression of the Golden Order, he maintains his integrity and protects those who need him, even those who the Order would condemn. The two most prominent examples being, of course, the ancient dragons and his half-siblings Malenia and Miquella.
Despite being born into a deeply flawed system, Godwyn maintains his integrity and protects those who could not otherwise protect themselves.
I feel like Godwyn managed to pull a few strings regarding The Golden Order. Especially since it's written in the lore that the dragon cult was able to co-exist with the Golden Order. I don't think that was the truth before Godwyn convinced his mom to end the war with the Dragons and let him and Fortisaxx be buddies. How could she say no to her perfect boy? He did his job protecting Leyedell and the Erdtree, so mama let him keep epic ancient dragon friend.
I personally HC that after Marika and Radagon realized that the twins weren't suitable to take Marika's place due to their ailments, a lot of attention was taken off them, and all the pressure was put on Ranni. While Marika and Radagon may have let their diminished hope in them taking the throne show, Godwyn would never show it. He was just happy to be a big brother, and he wanted them to not feel like they were burdens. I don't think it would be wrong to say Godwyn was essentially their guardian for a time before they left for the Haligtree.
I like to HC that Miquella kept his plan of leaving GO fundamentalism and Leyendell altogether from Godwyn until maybe the last week or so. While Godwyn was ultimately supportive of Miquella and Malenia in this decision, he was deeply saddened that they were leaving him alone at the mercy of his mother. He could handle it, but seeing Miquella and Malenia on a daily basis was a highlight of his day. Either way, he put up a brave face for them.