It's nice that there's still well preserved wooden houses out there. I can't even imagine how much work that takes. My experience taking care of wooden structures is limited to a porch, a gazebo, and an old shed that I ended up deciding to replace with a new metal one. These days they even build residential spaces out of steel, like at this company https://www.uspatriotsteel.com/residential-metal-buildings/. You barely even have to wait, it's all super fast, and there's ready made turnkey designs. Though honestly, I really do love the look of little wooden houses.
RE: Northern Europe’s best preserved wooden houses are found in Stavanger (Norway)