Which floors are suitable for single-family homes? What does the home-building elite recommend?

It's fine. I had the impression that you lack information and experience on the topic of room acoustics. It's OK if the topic is done for you.

Therefore, everyone must decide for themselves how important the acoustic aspect is regarding the choice of flooring.

Yes, but of course, everyone SHOULD even do that for themselves.

I would never hear a difference if I were sitting in a room with parquet flooring with 20 people or in a room with tiles and 20 people.

.... you certainly would if you did that test the same way. But that does not mean you would decide based on it; however, the difference is there. Nowadays, we are exposed to a high level of background noise without even noticing it anymore. Still, it makes sense to be sensitive in that direction as well. You also don’t notice fine dust or bad footwear etc.... often, you only experience it at some point later through physical/psychological reactions to such things. BUT: This is also NOT a judgment regarding right/wrong, but just my observation that it is often present unnoticed. I have already described my experience when I was alone in the desert for a long time. The first time in my life with truly ZERO noise, I found it almost unsettling, but it also made clear to me what is perceived as "normal" by me.

Yes, of course, everyone SHOULD do that for themselves.

....you definitely would, if you took this test the same way. But that doesn’t mean you would decide for it afterwards; the difference is there though. Nowadays, we are exposed to a high level of background noise without even noticing it anymore. Still, it makes sense to be sensitive in this direction. You also don’t notice fine dust or bad footwear, etc....... often you only experience it at some point later through physical/psychological reactions to such things.
BUT: This is also NO judgment regarding right/wrong, just my observation that it is - often unnoticed - present. I have already described my experience when I spent a longer time alone in the desert. The first time in my life with truly ZERO noise, I almost found it unsettling, but it also made clear to me what I perceive as "normal".

Definitely, I also believe there’s certainly some truth to that – no question!

However, in general, I am very conservatively inclined in such areas. I think nowadays there is far too much fuss made about everything. I catch myself in so many areas regarding house building. I believe it is more this thought that affects the psyche: "Not having done anything 100% right" or "having something different from the rest" or "nowadays, people do it differently".

For myself, I believe I have a very high tolerance level in many areas, or I am very quickly satisfied with a lot. It is exactly in these areas where I think one has to weigh very carefully in the forum and be cautious (as I said, I have often caught myself finding things "good" just because society suggests it, although I don’t care at all).

Ultimately, everyone has to know for themselves what kind of "type of person" they are and how important various things really are.

I think the urge for perfectionism and for all sorts of different feasibilities/opinions comes from the psyche. The urge to always have everything nice and great in the future, to renew again and again, to always "develop" oneself anew. Nowadays, people are even scoffed at when they say: "I’m building my house for eternity."

For me, this fits quite well with these "little things" like floors, etc.

Some say: "Vinyl is not good for my child, tiles are too sound-sensitive, the granite countertop is absolutely necessary, without a ventilation system I will suffocate in my house, and building a basement is only for 'fools' anyway." Come on... back then, that didn’t hurt anyone...

I myself am already on this "trip" to try to make everything perfect; ultimately, I believe way too much fuss is made about way too much :D

PS: I am also so glad to have actually decided on all areas already, because there is always something else to be heard somewhere that makes you doubt or similar. I think once you’re living in it, all the "doubts" or things you have been worrying about nights on end don’t matter at all anyway :D

Nevertheless, we small part of builders are here in this forum also to master our new build as best as possible :)

Now that the topic of acoustics has been extensively discussed and some experiences have been shared here, I am still interested in experiences with floating floor coverings over underfloor heating. Can you feel the difference compared to glued parquet? And how much more "loss" occurs in this case?

and how much more "loss" arises here?

I always wonder whether a loss really occurs, or if the underfloor heating just becomes more sluggish because the heat transfer through the "insulation" air is simply slower. Perhaps someone can say something about this?

I always wonder whether there is really a loss, or if the underfloor heating just becomes more sluggish because the heat transfer through the "insulation" air is slower. Maybe someone can say something about that?

I think if the heat has more resistance to escape upwards, it looks for a way more in other directions? At least that's my feeble physical assumption. But I would be happy about experiences or expertise.