What has died is the idea of the internet. It is thoroughly balkanized now.
We're here on this internet talking. Things are different on other internets.
The original design was that individual state level actors couldn't sever access to the internet without significant investment.....
We just balkanized the internet in a different direction (walled gardens)
Platforms on the internet are not the internet, as much as people like to conflate them for the sake of the narrative.