Mick West on YouTube has some pretty good explanations behind the UFO sightings by the US Navy.

Here he goes through why the glare rotates while the horizon does not (and recreates the phenomenon): https://www.youtube.com/watch?v=ka_bX9Hx1H0

Here he highlights the relevant gimbal information on the Navy display that explains the "sudden" movements of the UFO: https://www.youtube.com/watch?v=U1di0XIa9RQ&t=251s

He's a retired developer who is now a science writer and skeptical investigator (just to give you an idea of where his expertise/bias may lie)