A combination of sharp drone flying and editing:

https://insideevs.com/news/576308/amazing-drone-footage-shows-tesla-model-y-made-giga-berlin/

Very impressive drone footage, and, very impressive factory!

The video was very impressive. Also, at the end, there were a number of other videos that covered various aspects and they were very interesting, also.

About ten years ago I had been at a boat show in Vienna, Austria, and the Bavaria booth had a video that showed how they designed and built their boats. They went from CADCAM all the way to assembly with a lot of robotics. Tesla takes this technology to the next level.

If you want full screen:

Flying Through Giga Berlin - YouTube