

The new version of the program doesn’t seem much less confusing than the current system, as there are still a whole bunch of branches, sub-branches, and exceptions to rules
As I read more about the new system, this was my exact thought as well.
they do address the other major pain point of the Insider Program as it currently exists—the thing where you read about a new feature in a fresh Insider build, install that build to your PC, and then don’t actually see the feature on your system.
It was fucking crazy that was even a thing before…

Yep, they are in Low Earth Orbit. A place that has a very, very small amount of air, so the satellites experience drag, lose speed, eventually the propellant tanks run dry, and they burn up in the atmosphere. The ISS experiences the same thing, which is why its altitude slowly falls, then you see a sharp increase as they push to a slightly higher orbit.
At the altitude the SpaceX satellites are at, they only passively stay up for a few years. With the onboard propulsion giving them each another few years.