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.
Unless someone can show me a video, I am saying yes you could. It was the M button or hit pause and pull up quest map. there in the upper corner there was a icon of your camp that you could click on. Now there was certain areas, like the Deep roads that you could not use it. But if you were in any of the non dungeon areas you could pull up the map and QT. I am still googling it but every post I have found, states exactly what I am saying.
