Great video from David Weiss.
He uses a 4K drone to film the sun simply fading out and NOT setting or going down as it disappears at "sunset".
I've seen other videos from FEs which show the sun "setting", appearing to be partially hidden by the horizon, and then they zoom in and it returns to being ABOVE the horizon, demonstrating that the perception that the sun is being cut off by the horizon as it sets is an optical effect.