Polished porcelain can bring light and reflection into a bathroom, but a polished wall finish should not automatically be carried onto a shower floor. The exact product and intended application have to be checked.
Reflection is not the same as suitability
A polished surface may look excellent beside a basin or on a feature wall. A shower floor has additional requirements because it is regularly wet and is used while soap, water and cleaning residue may be present.
The relevant product information should address the intended wet-floor application rather than relying on the collection name.
The rest of the floor still matters
Shower falls, the drain, grout, threshold and cleaning routine all affect how the surface behaves. A technically suitable tile will still be unpleasant if water remains on the floor or the layout creates difficult-to-clean edges.
Surface choice cannot be separated from floor geometry.
Use the same look more intelligently
Many premium ranges offer coordinated finishes. A polished version may be used where reflection is desirable, while a matt or more textured version carries the wet walking surface. The room can remain visually connected without pretending the two locations have identical demands.
Luxury is often achieved through selecting the right finish for each zone, not through using one finish everywhere.
Read the same porcelain look with different grip finishes, or see why R10 is not the only shower-floor question.