Being deep down in the Underdark, this is the first this strucks me bad as well. Like, you're given a quest to look for someone who's disappeared, and the location immediately pops up on your map (edit: to be fair, it's the general area, not the exact spot, but since it is a small area, you'll spot him immediately). First, that doesn't make any sense. If that dude is lost, he's LOST. Second, it takes away the mystery and ambiguity (also of the place), making everything smaller than it is and hurting the work the level designers put in.
Thirdly, it's not even necessary. It's not like BG3 has these huge sprawling maps you're guaranteed to get lost in. If you take a peek around (and keep your object highlight key pushed), stuff will find you sooner than you will find it. Like any contemporary game, this ain't no Thief, a game that dumps you into underground caves and crypts that are maze-like on the very purpose of making you feel lost and alien.
I still remember watching the making of documentaryy of Original Sin. How Larian staff (rightfully) argued that it would be stupid to have say DOS1's murder mystery quest, and then all the "helping hands" doing the detective work for you. They voiced their personal frustration at all the other games that do this too. This is a direct quote: "Do these people thing I'm stupid?" And they're completely right. It's been my biggest bugbear in gaming for a very long time. What's happened?
I understand this to be optional who prefer that to be in. But whenever possible, any of this *should* be optional. And it could be -- I haven't found a SINGLE quest in this so far that needs any of this.