Sound insulation and thermal insulation specifications for windows with "from-to"?

In the construction and performance description it is agreed: "All windows are plastic windows with triple glazing, white inside and outside without muntins, brand-name products, triple thermal insulation glazing."

We are building with a developer, went to a specialist wholesale store to choose. They showed us the window included in the price, but the salesperson recommended the Internorm window, as it is currently available at no extra cost due to a promotional price ("triple glazing at the price of double glazing"). This was also supported with the arguments "better sound insulation and better energy values."
The consultation protocol states "Internorm ILF 410 Studio" and the corresponding colors.

What I just noticed now is that apparently there is no ILF 410 from Internorm.

I saw one of the windows before installation and photographed the sticker:

What I just noticed is that there apparently is no ILF 410 from Internorm.

Perhaps a KF410 with integrated ventilation is meant (?)

No, we don't have integrated fans, now that I know such things exist, I would have always preferred them over the stupid decentralized giant things :/