I don’t know finnish, but from the translation the first page says very little about fabric softeners. Barely a title and 3 bullet points. A recommendation against using it for certain fabrics but doesn’t actually list them all, or why it’s bad. I don’t know about you but I wouldn’t base my decision making on such little information.
The 2nd link is even worse, being primarily about allergies and chronic diseases, their concerns are about skin irritation. The only takeaway you should be making from this is that fabric softener can reduce or cause skin irritation.
https://www.martat.fi/kodinhoito/pyykki/pyykinpesuaineet/
https://allergia.fi/vinkkeja-hyvaan-arkeen/allergiat-ja-arki/
Similar to your links, it is said it’s not necessary. Doesn’t particularly recommend against it.
I don’t know finnish, but from the translation the first page says very little about fabric softeners. Barely a title and 3 bullet points. A recommendation against using it for certain fabrics but doesn’t actually list them all, or why it’s bad. I don’t know about you but I wouldn’t base my decision making on such little information.
The 2nd link is even worse, being primarily about allergies and chronic diseases, their concerns are about skin irritation. The only takeaway you should be making from this is that fabric softener can reduce or cause skin irritation.