I frankly don’t know what to think about it. This video does show some weird facts, and each one alone could mean nothing, but all of them together? Especially the fact that the window shutters are manually, mechanically operated with a shaft that separates the vacuum from the air inside with 2 small oil rings. As an engineer, this seems to be strange, and this seems to embarrass the astronaut and engineer of NASA in the video.
However, I disagree with the maker of this video on his belief (not detailed in here) that the Earth might be flat. It’s not because there are reasons to doubt the photographs and videos that necessary the earth must be flat. A flat earth seems to me to violate a number of fundamental laws of physics which this far have not be proven wrong. And no scientist have I ever heard who takes this stance.