Luna's is strong but fine. In good hands it'll eat blueberries but it's not hard to manage as a decent player. It's also attainable by most, even through public lfgs.
NF feels a bit much. I know people have said it's only 1 or 2 more meters effective range but in practice it feels more than that. It is locked behind legend which is fair but it's effective range to 3 tap combined with only the best players having it can feel broken. I don't know why they needed to add it on top of Luna's as a Pinnacle weapon. Id rather they dropped the range to be closer to Luna's while giving it another perk like dragonfly.
Any gun is going to feel a bit much when a 5500 comp player is using it. I have NF and I do better with a Mida/Bygone cuz it fits my playstyle. So I don't really see the point in nerfing NF.