Help! Is this the current state of technology???

I wouldn’t recommend using plaster in wet areas; instead, he should have the tiler come again to re-grout or tell him which grout material he used.

You’re right! I assumed it wasn’t about wet areas – a windowsill or some corner by the door is no problem with plaster. After all, there are also plastered walls in bathrooms ;)

In the pictures, I see a window corner

No, but the photo with the hole showed a floor tile. Otherwise, I wouldn’t consider it problematic either – although the grout color would have to match. For example, none of our grout has a gypsum-like color.

How would you have imagined the top stair step?

For me, the riser below the floor tile would have been nicer.

Oh dear.. if someone expects that from me, the air burns ;) My standard would definitely not be that and certainly not in a new building!!!

Where is the difference between new construction and existing buildings?

Where is the difference between new construction and existing buildings?

True! There actually is none! In both cases, it looks like it was done by an amateur!