When you select a piece of gear, it shows the characters that currently require that particular piece of gear.
Characters tagged as favourites are shown first in the list (now with silver icon).
However, characters for your selected journey guide (with gold icon) are not included in the sort order. This means you have to scroll along to see if any actually need the gear.
Another issue with this is that the gold icon can blend in with the image, so don't show up as clearly as the silver icon.
User story: as a player, I want to see my journey guide characters appear first in the sort order when gear is selected in the shard shop (and similar situations).