Naruto could also become more withdrawn. He might stop participating in village events and focus more on his own personal growth and training. He might feel that the village no longer values him, so he'll invest his time in himself instead of the village. This could include exploring new jutsu techniques on his own or seeking out mentors outside of the village.
He could start to oppose the village's leadership more openly. Instead of being the village's hero who always follows orders, he might become a vocal critic. He might use his influence among the villagers to try and bring about change in the way the village is run. For instance, if he thinks the village is being too harsh on the younger generation of ninjas, he could start a movement to change the training methods.
One reason could be the lack of recognition he gets in the village despite his great contributions. In the fanfiction, Naruto might feel that his efforts to protect the village are taken for granted.
One way Naruto can help is by forging better relationships with other villages. This would not only bring peace but also open up new opportunities for trade and cultural exchange. His reputation as a hero can attract skilled individuals from other places to come and live in the village, bringing in new skills and knowledge that can be beneficial for the village's growth.
His relationship with some friends might become strained. For instance, if Naruto decides to leave Konoha, some friends who are more loyal to the village might oppose his decision. However, his true friends will try to understand his reasons. Sakura, for example, might initially be shocked but then come to terms with it as she has seen Naruto's struggles.
On the positive side, it could inspire new and more creative fanfiction. Fans might try to write stories that Naruto would approve of, exploring different angles of Konoha and his relationship with the village in a more positive and nuanced way to avoid making him fed up.
It could lead to a shift in the type of fanfictions being produced. If Naruto getting fed up with Sakura fanfiction becomes a popular concept, more fanfic writers might avoid writing in that vein or might try to rewrite the relationship in a more acceptable way, which in turn changes the overall landscape of Naruto fanfictions in the fandom.
Sasuke would be a likely helper. Despite their past differences, they are comrades now and Sasuke has his own set of skills that could be useful in building a village, like his Sharingan - assisted precision in construction work.
Naruto's relationships would be turned upside down. His close friends like Kakashi would be worried about him. They might try to find a way to reverse the effects of the bite. Meanwhile, Naruto himself might feel isolated because he's different now. He might also attract the attention of other vampires or vampire hunters, which would put his friends in danger and further complicate his relationships.
Perhaps Naruto is fed up with Konoha's fanfiction because he wants a new adventure outside of the village. He has spent most of his life in Konoha and might be craving for a change. He could be bored with the same old politics and power struggles within the village. Also, he may have realized that the ideals of Konoha are not as perfect as they seem, and this disillusionment makes him tired of it.
He might try to change the perception of Konoha in a different way. Instead of the usual ways he's tried to protect and improve the village, he could focus on creating a more accurate image of Konoha both within and outside the village. He'd want to show that Konoha is more than what the fanfiction made it out to be.
In the fanfiction context, Naruto in modern Konoha would be a huge influence. His unique ninja abilities would be a source of fascination for the villagers. He might inspire the younger generation to take up the ninja way more seriously. Also, his own story of rising from an outcast to a hero could give hope to those who are struggling in the modern Konoha. He could also change the village's defense strategies by introducing some of his own battle - tested techniques.