I would like for it to at least be acknowledged. The only non-primary ammo bow in the game is Leviathan's Breath, and there exists a mod to increase bow reserves for heavy bows. But the bow reserves mod does nothing, adds zero, +0, arrows to the quiver if you have the catalyst unlocked for the Leviathan's Breath. It's been a long-lasting bug, but has been swept under the radar since possible even Season of the Lost, when its catalyst released.