Back to the topic:
Floor coverings in new construction are also keeping us busy right now, see forum. We are also looking for suitable coverings for the bedrooms and children's rooms (children 5 years old, one on the way, another planned) as well as the office 2nd attic and basement. We are not quite sure yet, but here is our interim conclusion:
Vinyl has always been recommended to us in hardware stores so far. It is indeed easy to maintain (we have it here in the rental apartment) and can look good; it is also easy to install yourself. The big but from our point of view: the de facto exposure. On the other hand: There is plastic in the car, at my public administration office I am exposed every day for 9 hours to the cheapest PVC floor and it is seen as great when children play with (PVC) Lego etc.
Laminate was our favorite so far, especially for the children's rooms. Why? If you buy high-quality laminate (possible from 10 euros / m²), it lasts quite a while, there are manufacturer warranties of 20 years or more for residential areas. You can easily install it yourself floating; Stiftung Warentest could not detect pollutants, unlike vinyl. And if it’s worn out after 15 years, the children are also out of the worst phase and you can install a "high-quality" floor. Disadvantages: It is said to be louder than other coverings, and it can also generate electrostatic charges.
Tiles, or rather porcelain stoneware (better that than tiles), are optimal for underfloor heating. If you buy high-quality material (pay attention to abrasion class, slip resistance and consistently the same material), you have something for eternity. Except in the bathroom, we have porcelain stoneware on the entire ground floor, since the terrace is here and children walk through with dirty shoes. Also, the wood stove is here and we did not want an underlay. Porcelain stoneware was not an option for us in the sleeping area or children's rooms because it is cold on the feet, which especially my wife dislikes.
How about thinking about carpet? There are certainly good materials, e.g. made of coconut, which also work very well with underfloor heating, are warm underfoot and durable.
Linoleum is not wrong in our view, at least for children’s rooms, as it is low-/pollutant-free, warm underfoot and durable. However, the smell after laying is rather so-so, it is not cheap either and the visual design is often not particularly great.
Our final conclusion: We tend to high-quality laminate for sleeping, children’s and office rooms for the "wild" toddler phase; when the laminate is worn out, parquet or something else nice will be installed. In the basement there will be tiles or simple protective coating, in the basement hallway plus hobby room porcelain stoneware or something else.
We will go to a good specialist dealer again, get advice and decide spontaneously with our current knowledge!