

The framing gets sealed and protected from moisture. It is not exposed to the outside. Exterior exposed wood is either pressure treated to resist rot, is a species that is naturally rot resistant, or it is painted.
Remember, the article is talking about altering wood to be both transparent and biodegradable. That sounds like a window to me. That is a role that is currently filled with either glass or plastic. You would not choose a biodegradable material for exterior use and most windows are used on the outside of a structure.
That was the plan for this administration all along. Trump is a Russian asset. He has never been interested in helping Ukraine achieve peace.