For Sakura, it would be a huge shock. She has always been a part of Konoha and has strong feelings for both Naruto and the village. She might try to convince Naruto to come back, and if she fails, she would be torn between her loyalty to Konoha and her friendship with Naruto.
The elders of Konoha would probably see Naruto's decision as a threat. They would either try to find a way to bring him back under their control or see him as an enemy. This could lead to a lot of political unrest within the village as they try to deal with the situation.
One possible reason could be betrayal. If Naruto discovers that Konoha has been hiding some dark secrets or has betrayed him in some way, like using him without his full knowledge. For example, if they were secretly using his Nine - Tails power for their own gain without his consent, he might decide to cut all ties.
His decision could make him more self - reliant. Away from Konoha, Naruto has to depend solely on himself. He'll likely face new challenges that force him to dig deeper into his own abilities and beliefs. This could lead to a more mature and nuanced understanding of his own strength.
Well, in some fanfictions, Naruto might outsmart Konoha by using his unique knowledge of the village's secrets that others don't know. For example, he could use his understanding of the old tunnels under Konoha to his advantage in a situation where he needs to escape or gain an upper hand in a conflict.
Well, it could be that Sasuke decides to join Naruto in leaving. They've always had a complex relationship. Maybe Sasuke sees Naruto's reasons for leaving as valid and decides to support him, which strengthens their bond.
For Sasuke, it could be a complex reaction. He has his own issues with Konoha, but Naruto was always a sort of anchor for him. Naruto leaving could either push him further away from the village or make him re - evaluate his own relationship with it.
The 'godlike' status may also make him feel isolated in Konoha. People might treat him differently, either with too much reverence or fear. This could lead to his decision to leave as he may seek a more normal life or at least a place where he is not constantly under the spotlight. For example, he may want to be in a place where he can use his powers freely without being judged or having his every move watched. He could think that leaving Konoha is the first step towards finding such a place.
Konoha would initially be in shock. Naruto is a hero to many in the village, and his sudden departure with Itachi, who was once considered a traitor, would cause a lot of unrest. The villagers might start to question the leadership of the village, wondering why Naruto left and if there was something they could have done to prevent it.
His anger might cause a strain in his relationship with his friends at first. They may not understand why he is so angry and feel hurt by his sudden change in attitude. For example, Sasuke might be confused by Naruto's anger towards Konoha as he has his own complex feelings about the village.
Well, it would be a big loss for Konoha. Naruto is a powerful ninja, and his absence would mean one less strong fighter to defend the village. Ino, too, has her unique skills in mind - related jutsu and communication. Their departure might also lower the morale of other ninja, especially those who were friends with them or looked up to them.
Konoha might be in shock at first. They have always relied on Naruto to some extent, and his refusal to help is completely unexpected.