I don’t think so.
The purpose of an anechoic chamber is precisely to confirm a mathematical model.
There are many possible applications.
Among others, loudspeakers.
Some companies with the financial means and the skills (very few) digitally model their drivers and enclosures.
But these remain digital models. The prototype must then be built and tested to confirm the model. To do this accurately, you need an anechoic chamber. And that too has a cost.
Most speaker manufacturers do not have the means to do that.
As for how it feels like to be in an anechoic chamber, I believe it must be really uncomfortable.
Our brain needs references to locate us in space. We use three main ones: the equilibrium control in the inner ear, sight and hearing.
Hearing is often forgotten.
We need noise/sounds to locate ourselves in space. Especially sounds reflected from the ground.
Making walls and ceilings disappear is not a big problem for our brain. It is disturbing, but you can get used to it. It’s like being outdoors in a silent environment.
But removing the floor is problematic. The brain gets lost and can’t compensate. Hence the massive discomfort one feels in an anechoic room (an effective one!)
Sight and hearing are no longer in coherence with each other.
And that’s important to remember when treating a room: do not over-treat the floor.
For example, covering the whole room with carpeting is not a good idea.
That’s something I won’t do in my room. I placed 15 cubic metres of absorbing material on the walls, but nothing on the floor.
EDIT :
I think we are drifting. Sorry, @Stu299 .
This conversation would be better suited for The Listening Room Reality thread.