Naturally the rich and powerful have been claiming the shoreline along most of the coast around major towns in Sweden - this is especially true pretty much anywhere in the affluent suburbs around Stockholm, where house owners just extend their gardens down to the water.
As for freedom to roam - I’ve been walking around Södermanland the last few summers, and have met an amazingly few other Swedes hiking. Even during the pandemic I met more foreigners out on the paths. Swedes were safely ensconced in their cars.