Suggestion RE: NPC locations between quest objectives

Certain quests (mainly those in important questlines) tend to have numerous NPCs that join you and spread out between objectives, and if you can find them, have text lines.

I enjoy speaking with all NPCs associated with quests when I can, but it really irks my inner completionist when I can't find these NPCs on the overworld when they spread out, and I feel like I'm missing out when I continue the quest without finding them. That, and it sometimes takes a while to scope them all out.

To boot, this seems to be inconsistent, sometimes NPCs will walk away without reappearing on the overworld, other times they'll hide in a dark corner, waiting.

I know their text is mostly just flavour, but I think it would be great if they appeared as little pips on the map if they have things to say so I can go talk to them and be confident I hadn't missed anything.

I am hoping this is something that can be added if others feel the same.