Seeing Naruto's power in fanfiction can greatly influence Boruto's character. It could make him more determined to reach his father's level. He might start training harder and be more serious about his ninja duties.
Well, in such a fanfiction, when Boruto sees Naruto's power, it could have a complex impact. On one hand, he might feel overshadowed and initially get discouraged. But on the other, it could fuel his competitive spirit. Boruto may then study Naruto's techniques more closely, learning from his father's example and adapting those skills to his own fighting style. This could lead to him evolving as a ninja and also growing as a person, as he realizes the responsibilities that come with great power.