The Stavlinebygg and Grindbygg are two quite different framing methods.
I have participated in a Stavlinbygg with Trond Oakland and Peter Henrickson. The Stavlonbygg construction is designed for high wind areas, with angled uprights and a stout roof structure to withstand racking and “lift” or the wind taking the roof off.
Both building styles make good outbuildings, boathouses, orkshops and barns. You would have to change them a bit to make a warm dwelling.
The video in your link shows a Grindbygg extension to an existing building.
Both buildings, when used for hay barns, can have stone slab lower walls installed and breathable walls of juniper branches. Stone, shingle or birchbark and sod roof coverings are used, with modern buildings using sheet metal.
Very good, long lasting structures.