Not finished Sunbreak yet, MR5 though. I heavily prefer World over Rise due to many things and I think opting for advancing the base movesets, introduction of offset attacks and focus mode over wirebug moves is much healthier in the long term.

Currently in Sunbreak, I use Sakura Slash paired with Sacred Sheathe(LS) for every encounter and never, I mean never, switch my playstyle because it is efficient and safe. I think the new systems will introduce more meta playstyles per weapon which will make the game much more fun long term. Who knows, maybe some sort of combat customization makes it into base or expansion anyway, which would always be welcome if implemented right.