rigid umbra
Arrow in every demon slayer game has been pretty aggressive and mostly op. Yahaba doesn't exactly match that. He, and arrow as a result, are both clearly meant to be supportive rather than aggressive. Placing traps that'll fling people, acceleration of other attacks to make them stronger, range to keep an enemy away. That's what arrow should be.
If you've played super smash bros, think villager in terms of stage control, or ness in terms of space trapping. It sounds op, but it would also make more sense than having the same projectile do 4 different types of knock back.
Arrows' hold 1st ability came close to the trapping feel, but still didn't capture the same feel that the anime did.
tldr; make arrow more accurate to the anime, even if it sucks. Looks more fun.
(Thanks for reading 😁)