possibly a "healthier" alternative?
After reading Öko-Test, we revisited the topic..
The so-called "design floors" usually have the Blue Angel and have similar properties to vinyl. Meister and Wineo will soon offer vinyl with the Blue Angel for gluing. This would be more robust and better suited for underfloor heating compared to floating design floors.
Whether and how unhealthy vinyl is, as you noticed, is a controversial topic. There are limit values for emissions, but the measurement method seems to have been defined in favor of the manufacturers (high air exchange rate, and I believe joints may also be glued). My personal conclusion: in reality, limit values are exceeded.
One should also consider the question of how carrier materials, adhesives, etc. from other artificially produced or treated floor coverings or impact sound insulation can be harmful.
We glued vinyl on the ground floor and installed a floating design floor with very low thermal resistance upstairs/in the bedrooms. I would have preferred glued vinyl with the Blue Angel everywhere, but it was not yet available.