Yeah, this is easy to confirm. I've had a desktop with multiple GPUs in it for close to 10 years, and outside of Final Cut Pro and Motion, I haven't found a sin

Yeah, this is easy to confirm. I've had a desktop with multiple GPUs in it for close to 10 years, and outside of Final Cut Pro and Motion, I haven't found a single app (definitely not any games) that would use both GPUs, even though they were there and waiting for data! I write my own code to use both of them and it screams. It's unfortunate that more developers don't use it. But it's certainly overkill for an intro tutorial to discuss it. All of this to say: I fully agree. The Vulkan tutorials I've found have put me off ever trying to use it again. I'm sticking to Metal which is much easier to understand and a delight to use.