Authorities in Finland advise against the use of pressure-treated

[sunqan]

The Finns have a bit more of the "point with the whole hand" style...
Here is the Swedish Chemicals Agency's page https://www.kemi.se/kemikalier-i-vardagen/kemikalier-i-material/tra-for-utomhusbruk

 

[Daniel 109]

If you have a glazed patio, it doesn't need to be impregnated. I can agree that sometimes impregnated wood is used out of habit. It is not needed everywhere it is used.

 

[Peter787]

Since there are currently no approved tree protection products for ntr-m in Sweden, one might wonder what you're ingesting

There is indeed NTR-M, but only for professional use for constructions near water that are difficult or expensive to replace.