I do believe we are talking about deep fake on the Trump video - it seems like a manipulated video tome, but that's not really the point I want to make. What just occurred to me is much more sinister.
My theory is that deep fake is how they are going to prop up Biden. Think about it. They can post videos of him speaking - saying ANYTHING they want him to say. He doesn't even have to be coherent for the next 4 years. They can hide him in a closet and push out a video from time to time, saying he's afraid of Covid, so that's why he's not seen out in public.
To me it looks like it was shot in front of a "green screen", which would explain why it looks a little "off." That in itself doesn't mean something's up - if Trump is not at any of the usual locations (WH, Mara Lago, TT) where they have a studio set up for live video that would be an obvious solution if he wanted to get a public address out.
The question then is... what is he up to that has him shooting video from a remote relocation? Also, why is Pelosi et al all riled up about restricting his military access all of a sudden...
Again, this isn't about the background and green screen. I know all about chromakey and the artifacts that come with that. I'm speaking specifically about the movement of his face, mouth, eyes, and neck in relation to the body.