5D Reality

To me, 5D is the same place, but seen from a higher perspective. So you manipulate and change reality better and more effectively.
Up there, "reality" has more "physical items and features". A place is/can be 1, 2, 3, 4, 5, 6D (as well as all the at least 60 Sub-Densities, 10 for each major), and look different in each.
It's how Ra said in 6D you can live inside the Sun, but in 3D it just is a deadly ball of plasma.
Or how you can create etheric, astral, spiritual items that are invisible to 3D eyes.

So I could say it's both an elevation of consciousness, and you know more about reality to tap into the expanded things and concepts that make it seem like reality shifts.
For example, a 3D being would have to create a table using physical tools and processes, while a 5D or probably 4D can will it into existence. (Or the "infinite Xness" as Ra said)

Invisibility and walking through walls are skills that are easier to develop when you're 4D, and since even etheric (3.1D) beings can go through walls, this likely appears at that stage.
They're not invisible or walking through walls all day long too. They toggle it on when they wish.

The astral is 3.5D.

I still think 5D is the Fifth Density.

Some already say we've been in 4D since 2018.