Does one of you know whats the difference between _Camera HDRI_ and _World HDRI_

[![Lights panel in Blender 2.8's Preferences][1]][1]

---

Blender 2.8 now have these options to import _Viewport HDRIs_

I've noticed that if i import a file (either _.hdr_, _.exr_, _.png_, and _.jpg_) as "**camera HDRI**", it **only** is shown as a Studio Light on **Solid Mode**

[![Imported camera HDRI, showing only in Solid Mode Studio Light][2]][2]

While importing as "**world HDRI**" it works **both** in **Solid** Mode's StudioLight and **LookDev** (Material) Mode

[![Imported world HDRI, showing both in Solid Mode Studio Light and LookDev][3]][3]

So...
What's the purpose of have those two ways to import HDRs? Is it a bug, that, being each import mode work only for one Lighting type, make "World HDRI" work for Solid mode too?


  [1]: https://i.sstatic.net/m9Ik1.png
  [2]: https://i.sstatic.net/sHPX9.png
  [3]: https://i.sstatic.net/ETkHl.png




-------
**edit**

This question was also posted on Blender Artists
Got an awesome answer there, and make it clear
Here's the link to the topic: https://blenderartists.org/t/differece-between-blender-2-8s-camera-and-world-hdri/1117783