When Naruto acquired RSM it came with Universal comprehension of all things.
He instantly subconsciously understood any and all aspects of his powers.
Which was why he could use C.O.A.T to bring back Kakashi eye but couldnt explain how he did.
and also how he could fly but couldnt explain how he did it.
Learning no longer applies to Naruto.
Universal comprehension of all things allowed him to enter a state where he wouldnt need to train or hone his skill.
He had already instantly mastered all of his powers.
The only thing he couldve honed at this point was his Taijutsu
He instantly subconsciously understood any and all aspects of his powers.
Which was why he could use C.O.A.T to bring back Kakashi eye but couldnt explain how he did.
and also how he could fly but couldnt explain how he did it.
Learning no longer applies to Naruto.
Universal comprehension of all things allowed him to enter a state where he wouldnt need to train or hone his skill.
He had already instantly mastered all of his powers.
The only thing he couldve honed at this point was his Taijutsu