It isn't just triple A studios moving to Vulkan. Emulator development, for one, is moving there too. RPCS3, Dolphin, etc all see big time benefits to moving to Vulkan.
OpenGL drivers are well known for being buggy as well. For a very long time, AMD OpenGL drivers on Windows were terrible and saw little love given that DirectX on Windows is where most of their effort went. It seems that Vulkan drivers are more performant, less buggy, and treated more as a first class citizen across both Windows and Linux.
And OFC, Apple deprecated OpenGL and they are stuck at 4.1 from 2011. At least with MoltenVK, you get Vulkan->Metal and a modern-day API to talk to without having to deal with Metal directly.
OpenGL drivers are well known for being buggy as well. For a very long time, AMD OpenGL drivers on Windows were terrible and saw little love given that DirectX on Windows is where most of their effort went. It seems that Vulkan drivers are more performant, less buggy, and treated more as a first class citizen across both Windows and Linux.
And OFC, Apple deprecated OpenGL and they are stuck at 4.1 from 2011. At least with MoltenVK, you get Vulkan->Metal and a modern-day API to talk to without having to deal with Metal directly.