Old-growth forests were largely cut down a long time ago. There's some still left, and the majority (but not all) are protected.

The area of 2nd level ("gammelskog"; forests older than 150 years) continues to increase.

Overall, Sweden has a higher amount of forested area now than in 1900, and it's not just planted young growth.

The "save the forest" campaigns of yore were pretty misinformed.