It might strengthen his relationship with Sasuke. For example, Naruto could use his time - control to understand Sasuke's pain better. He could go back to the time when Sasuke's clan was massacred and truly feel what Sasuke went through, which would make Sasuke more likely to open up to him and trust him more.
His relationship with his teachers could also be affected. If Naruto can control time, he might go back to his training sessions with Kakashi and show Kakashi how much he has grown. This could make Kakashi respect him even more and perhaps teach him some new techniques or give him more difficult and rewarding missions.
Regarding his friends like Shikamaru and Choji, Naruto could use his time - control to save them from dangerous situations they were in before. This would deepen their friendship and loyalty towards Naruto. They would see him as an even more reliable and powerful friend, and might rely on him more in future battles or tough situations.
In this fanfiction, Naruto's time - control ability would be a game - changer for the plot. He could potentially travel to different points in time to gather knowledge and power. Maybe he'd go back to the time of the Sage of Six Paths to learn some ancient and powerful jutsu directly. This new - found knowledge and power would not only make him stronger but also shift the power balance in the Naruto universe. It could lead to new alliances and enmities as other characters react to his new abilities, and thus completely rewrite the plot in many unexpected ways.
Naruto's ability to see the future in fanfiction can really mess with his relationships. He could see a future where his friends die because of his actions. This would make him question his place among them and might lead to him isolating himself. With his family, like if he has a future vision about his kids, he might be overly strict or try to control their lives too much to prevent the bad things he saw from happening. And with his teacher, like Kakashi, if he sees a future where Kakashi is in danger, he may act impulsively to save him, which could cause problems in their normal teacher - student dynamic.
Well, it could greatly enhance his relationships. He would be able to understand his friends' true feelings without them having to say a word. For example, he could sense when Sasuke was truly troubled, even if Sasuke tried to hide it. This would allow Naruto to be more empathetic and supportive, strengthening their bond.
Well, it could change the battles a great deal. For example, he could use light to blind his opponents or create illusions with it. This new ability might also make him a target for those who want to harness his power for their own purposes.
When Naruto can control the bijuu in the fanfiction, his relationships shift. His friends might be more protective of him as they know his power makes him a bigger target. The villagers who once shunned him could now either idolize him or be even more suspicious. And in the ninja world at large, other villages may try to form alliances with him more eagerly, while some might plot against him out of fear that he'll use the bijuu to dominate. Naruto's newfound control over the bijuu is like a catalyst that stirs up all kinds of reactions in his relationships.
It could make some characters more respectful. For example, those who previously underestimated him might see his new ability as a sign of great power and start to treat him differently.
His illiteracy might make his friends initially frustrated. For instance, Sasuke, who is more studious, could be impatient with Naruto's inability to read important messages. But as they grow, they might become more understanding.
With Sasuke, it could either drive a wedge or bring them closer. If Sasuke blames himself for Naruto getting injured while protecting him, he might distance himself out of guilt. On the other hand, it could also make Sasuke realize how much Naruto means to him and he could become more committed to their friendship.
His apathy can strain his relationships. His friends might feel neglected. For instance, Sakura could be confused and hurt as Naruto no longer shows the same eagerness to be part of the team.
Some characters might be in awe of him. His friends could rely on him more for protection. For instance, Sakura would feel safer knowing Naruto can create defenses with his matter - controlling ability.