So much so that it has to be recycled using a separate process that many places refuse to adopt in Switzerland. I believe it’s either because it’s too complicated or because you have to license it from tetrapak and it’s too costly.
AFAIK its paper, sure but laminated with aluminum and plastic so good luck separating the layers into recyclable stuff.
Not that recycling is a panacea in the first place… more like a gimmick to make us feel good about wasting so much instead of questioning the methods of the industries producing all the waste in the first place.