Icons have a pretty descriptive name, if only we could search for them then finding the right item would become easier. I imagine a textbox above the icon list that, when empty, would allow the icon list to work the same way it does now, showing all icons. But start typing, and only icons with the (case insensitive) text as part of their name will be shown.
That said, this requires some development effort, so seems like an item to be relegated to PS Unreal. I have no familiarity with the interface we will have there, so this may not be relevant, if it is however I would like to see it implemented some time, and not only for shortcut icons (storage comes to mind
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