Runes reforged is garbage and creates more problems than it can ever solve.
A major reason for damage currently being so high? Runes reforged. Kleptomancy? Cancer Commencing Stopwatch? BS, needed to be nerfed multiple times. Just another Gimmick. Future's Market? Lowkey overpowered Relentless Hunter/Magical Footwear? Yay, more movement speed creep. Adaptive AD/AP? Thank you for locking me into stats that I might not have wanted, so much for player/skill expression. Second Wind/ Bone Plating? Thanks for making tanks even safer/stronger than they already are early game. So much for weak early in return for scaling. Electrocute? Because thunderlords was sooo balanced. Fleet of footwork? Aids. Sorcery? Great, now damaging utility abilities pack just as much of a punch as straight damaging abilities. Conquerers? Wow, it took half a year for Bruisers to get a rune that worked for them, and it still isn't even as good as the old Fervor. (Although Keystones had similar problems to runes reforged).
Literally the only good thing about Runes Reforged is that you no longer have to pay for it. Outside of that, it's just enabled for even greater damage/mobility creep, and the choices honestly aren't even meaningful. The original Rune/Mastery system back in season 4 was more expressive.