That's a very limiting definition of 'death' and it may as well have applied for "Linux Desktop", yet Linux as a Desktop choice is increasingly popular, just not at a growth rate that would satisfy Silicon Valley: https://www.justingarrison.com/blog/year-of-linux-desktop/
As for 1: you don't have metrics for that. As for 2: you don't have metrics for that.
As for 1: you don't have metrics for that. As for 2: you don't have metrics for that.