Neither of your links contradict what @Innateagle said. In DA:O, you can fast travel directly to camp, but only from the world map screen which you can only bring up in certain areas. You have to walk to the physical exits of most areas (e.g., Orzammar, Circle Tower) in order to make use of this fast travel.
It's the BG3 equivalent of having to physically walk to the glyphs in order to teleport from glyph to glyph.
This raises an interesting (to me) solution to the "camp anywhere" problem. If you had to go to a specific point on the map to port back to camp it would go a long way to ration the camping. I would err on the side of putting lots of these spots out there, so that its not a huge hassle, but specific points to reach camp would really help me at least with immersion.
Put some mobs around to create an interesting encounter that must be solved to camp in a new area, and I think it could be pretty fun.
