Is it normal that you can hear the Xbox Series X rustling slightly from about 2 meters away?

It is only audible in a completely quiet room and only a very low noise, but I've read that it should be completely silent from this distance.

Yes it is normal.

Yes, absolutely

If something can be heard from a closer distance then it can't be silent.

And hearing is very subjective.

From a purely objective point of view, one can say that it is almost impossible to hear.

The audibility, especially of fans, can also be greatly influenced by the installation location, both negatively and positively