Brothers in Arms. Skelige (The Witcher 3: Wild Hunt)

There was a big problem, after completing the first quests about the giant and the one-eyed jarl, after receiving the reward, instead of choosing to help one or the other, he said, they say, you’ll figure it out yourself (I thought I’ll solve this dilemma later), and now there are no quests and dialogues on there is no topic of becoming someone king, while the brothers in arms quest itself says that we need to deal with the problems of succession to the throne, and there are no markers, only the task is hanging, is there any way to complete this task?