> The issue is more likely the very different graphics implementation.
Metal and Vulkan are very conceptually similar. Most things you can write against Vulkan will work in Metal, only the API calls will differ. MoltenVK will even wrap Metal with Vulkan's API.
But the OP isn't talking about graphics APIs, they're making the absurd claim that ARM CPUs are "obscure". It's so wrong it borders on asinine.
The M1's TBDR GPU is very different from an Nvidia-style GPU. The different API doesn't actually matter much, but for best performance you'd want to rewrite the renderer whether or not you used a different API.
Metal and Vulkan are very conceptually similar. Most things you can write against Vulkan will work in Metal, only the API calls will differ. MoltenVK will even wrap Metal with Vulkan's API.
But the OP isn't talking about graphics APIs, they're making the absurd claim that ARM CPUs are "obscure". It's so wrong it borders on asinine.