>that the speed and specialist hardware (e.g. neural engine.....
Yes. For one, there seems to be no Unified API for GPU Computing in the PC Market. And Microsoft doesn't seems to be interested in doing a Direct X version of it.
And for NPU, which is increasingly important for things such as Speech Recognition, ( For many parts of the word where Languages aren't easily typed into, they are the default way of input on their Phone ), Photo Face Recognition without using the Cloud. Increasing use in Graphics, Video, Audio productivity apps. There aren't even any specific Hardware on PC market. ( That is why Intel is desperate to move the XE as a co-processor ). And it will be years if not a whole decade before a PC parts comes up and reach a large enough market volume.
And it sort of makes you wonder 3-4 years down the road when the M1 ( excluding Memory ) becomes a $20 SoC, will we see a variant of Mac cheap enough that will hit back at the 1.5B Windows PC Market. Where Apple current has roughly 110M Mac.