I agree completely. My larger point is that Apple and Nvidia's hardware has depreciated less slowly, because they've been shipping highly dense chips for a while now. Apple's software situation is utterly derelict and it cannot be seriously compared to CUDA in the same sentence.

For inference purposes, though, compute shaders have worked fine for all 3 manufacturers. It's really only Nvidia users that benefit from the wealth of finetuning/training programs that are typically CUDA-native.