Selection of vinyl flooring for new construction

And exactly this statement would make me very suspicious...

The newly constructed floors being relatively flat - cannot be generalized like that.

Normally, they should always be leveled with putty, however, [Fliessestrich] is usually already very even.

I think that our floor installer speaks from experience. We will see how it is with us and what still needs to be done so that the floor can be laid properly...

And? What are the experiences like? We are also considering installing vinyl floors in our new building and are grateful for any feedback. We also discovered the Kronos Xonic and find it perfect, but unfortunately, there are no reviews or tests anywhere that confirm the appealing claims. Thank you in advance.

I would not bring vinyl flooring into the house solely for building biology reasons...

Prefer clay soil or what?