Was it ever really alive?
Lots of those games have "Support added via an update" or "Support Planned". Only "Wolfenstein II: The New Colossus" is native Vulkan (and it's a failure of a game, politicized to barf).
Obviously the majority are not native Vulkan games and that tells it all...
PS: Only Android has just a few "Vulkan" native games. Oh, well, that's for kids that spend $1000 on a cellphone to play games, not truly a mass-adoption.