Even though it had improvements across the expansions, the current form feels a bit unintuitive to work with and dated as an UI feature, but most importantly, it's a slog when you're trying to overmeld and one of the reasons is the annoying animation.

I'd think it could use some neat panel like the one we manipulate the relic weapon stats, or maybe the slotting process working just like we see in FF7 Remake's menus, as well as reworking the melding animation to be more dynamic. Adding in the spiritbound status and extract funcion at the same place.

Another function that could be integrated as a tooltip complement is the actual materia capaicty of gear so we know what we can meld without having to actually buy the item.

One actual improvement that is not just UI would be the capacity to retrieve materia in any given order.