The AI ecosystem is a mess, but Nvidia and Apple are probably the two best supported hardware platforms.
Sure, Mediatek, Qualcomm, Rockchip, Intel, AMD, Bob and Robs chips chips and fish, and every little CPU and SoC vendor do shoehorn NPUs into their products, but nothing supports them, the vendors might port a version of torch or something else if you're lucky, but by the time they're done the hardware is outdated and the software they ported is outdated.
Apple hardware seems to be very close to Nvidia in terms of actually being able to run the frameworks, software and models that people are tinkering and building with.
And, shock surprise, for once Apple isn't even the most expensive hardware.
I wish I had an apple machine.