Gofast is just a weather balloon.
https://youtu.be/PLyEO0jNt6M
Gimbal is a jet. The perceived rotation is an artifact of the camera rotating on a gimbal.
https://youtu.be/4X1PRDbtiF0
Nimitz is also a jet. It’s far away, and blurry.
https://youtu.be/s1oTg0kxzDs
It would be really cool if these were alien spaceships. They’re likely not.