Earlier quoted context omitted.
Right? Germany too. I wouldn’t even have thought this could be a problem…
Until you measure the apartment later and find out that a) it's much smaller and b) it doesn't matter because you rent the apartment as seen, not as advertised.
A consumer doesn't buy anything from a business "as seen", that is not a thing over here. There are binding rules to protect consumers from malevolent sellers or landlords, and legal obligations you can't subvert by tricking customers into purchasing something different from what was advertised.