Burns has said that this was the hardest of his films to make. There are no photographs, no living witnesses to put on screen, and a lot of what would be interesting letters and correspondence had been destroyed. Martha Washington burned all of her letters to and from George, for example.
That said, we had a chance to see a preview a couple of weeks ago. What we saw was great. The National Park Service, Virginia 250 Committee, and the PBS station in Norfolk had the showing on the battlefield in Yorktown. They showed about an hours worth of footage, a lot of what we saw was tailored for the event so there was a lot of Yorktown footage. You can see Burns and company's fingerprints on this, it didn't seem to show any political leaning imo. But there are folks who tend to find Colonial Williamsburg a bit too woke for their tastes