It's not actually. Unlike strata, in a Swedish "Brf" you don't actually hold title to any real estate.

As the GP says, you own a share in a co-op that itself owns the real estate, and that gives you the right to use the apartment that corresponds to your share.

Something similar to strata title has been discussed for many years in Sweden: ägarlägenheter. I don't know whether anything has ever come of it, however.

It's a shitty system, thats why we also now have "Äganderätter" which basically means "owned rights" which means you cannot be forced to sell.

Unfortunately, not many buildings have that.