If nothing else there ought to visually be a quiver on our back when a bow is equipped. Have us be grabbing those infinite arrows from somewhere, not just manifesting them.
It would certainly be nice to have a quiver image on the hotbar, the opens a popup with our special arrows, similar to we choose what level to cast a spell at. Not that I ever use special arrows. Consumables *gag*
How are they going to add magic quivers if they don't even have quivers? Granted the only one I know of in DnD is basically just a bag of holding for narrow things, which translates to "weightless arrows", but magic quivers for the game could have stats or effects like gloves/boots/helms do I suppose.
A bow should only take up one of the two weapon slots, but lock the 2nd to quiver only.
Regular arrows I'm happy to keep as infinite. Most every bow user I've played DnD with never tracked their arrow count anyway.