Honestly, the emotional growth in those stories is always so frustratingly predictable to me. It's the same arc every time: kid gets ignored, becomes a weapon, meets a mentor, learns to cry, then forgives everyone. Real growth wouldn't be that clean. I keep reading them hoping for a twist, like maybe the emotional payoff isn't him becoming Hokage but realizing he doesn't need that validation, or that his 'growth' is actually just learning to be as manipulative as the village elders. The most interesting one I read had him leave Konoha permanently after the war, not out of anger, but because he finally saw the place as a toxic system he couldn't fix. That felt like actual growth, not a rehearsed character beat. Most authors just use the neglect as a quick angst button before sliding back into the canon power fantasy.
They rarely let him stay angry in a meaningful way, or show the paranoia and attachment issues that kind of childhood would realistically create. The growth is always toward the idealized, forgiving Naruto, never toward a complex, permanently scarred adult. I guess that's the comfort of the trope, but it rings hollow to me.