I didn't know to much about it either as the program started when I was still a toddler and ended when I was just finding out what girls were.
I believe it was launched with the Soyuz and attached as one piece of the front payload as shown in the illustration below.
There were 6 different missions that carried out different experiments. My knowledge is no better than the one you'll find looking it up yourself. After all, this is an era before me :P
I didn't know if they had more information directly with the display. It 100% looks old school.
Except that I am not lying. I have been part of more satellite and cargo launches than I can count. Every time, I can watch the launch, see the trajectory and direction of the launcher, observe the speed of the launch vehicle and its geo-position, and observe how it connects to different ground stations around the world as it travels. You see, we have different ground stations scattered from close to the North pole at Svalbard, down to the south pole as well as all along the equator in order to have a continuous link with the launch vehicles during launch and the deployed satellites.
These are just the ground stations operated by the Norwegian company KSAT
I can then see how the signal is received at one ground stations as the vehicle gets within a certain range of it, and how it then later disappears after it has passed by, only to reappear after it has travelled the distance equivalent to an orbit. You can even do the math once you know both the altitude of the vehicle, and the distance at which it received a link to a given ground station, to calculate the curvature.
This is undeniable proof of a round earth. How else could you fire a rocket in one direction and have it reappear over your head without it ever changing directions? How else would you explain why we need ground stations all around the world, and how they receive signals from a launched vehicle in the exact order, and at the exact times, you would predict based on assuming that the Earth is round and has a diameter and curvature that our models suggest? You can’t.
I can only suggest that you spend more time reading and educating yourself and less time watching conspiracy theories on YouTube.
You won't see curvature when you just look straight forward at the horizon. The only evidence of curvature in that footage is the fact that you can see further and further the higher you get. If you want to see curvature "to the sides", you'll need to look down at the Earth to get some form of angle.
A student team in Norway sent a balloon to the same altitude and took this footage
https://www.facebook.com/kogstarburst/videos/1496581273718019/
There you can clearly see the curve :)
But it doesn't matter. We already have plenty of images where you can see curvature. Like this one taken by SpaceX
How do you determine if it is CGI?
You do know that it is basically the same altitude as the video you linked above? Right?...
But I just told you that we launched it in just one direction and that we can observe with the sensors onboard that it goes in a straight line... When we send rockets into geosynchronous orbit, it travels along the equator and only to the west, never making any turns, and still comes back.
You also need to explain why it obtains a higher speed when you launch it to the west along the equator than if you launch it to the East. Which is why all launch pads for launches to that orbit are kept close to the equator (like KSC in Florida for American launches, or Guiana Space Centre in French Guiana for European Launches).
You can't explain it because it 100% proves that the Earth is indeed a globe.
Please tell me why these ground stations can only communicate with flying objects when they are within a specific radius and why that radius increases the higher the object is above the ground.
That makes zero sense with a flat Earth model of the Earth. And is a complete debunking of the model.
Now tell me instead why we can do the math to show that the ratio at which an increase in the height of the object and the radius at which it can be detected by a given ground stations scales perfectly with the rate at which the Earth curves. I'm looking forward to your reply.