Here's the thing, most people don't buy tech - they don't even buy a platform - they buy a solution. They need to get something done and they buy something that does it. That's why ARM and RISC-V really don't impact x86 anywhere near as much as people seem to want it to. x86, for all its flaws, works and works fine.
Is it efficient? Nope, but most people aren't "road warriors." Even when they're using laptops, they're usually plugged in. Is it the fastest? Nope, but most people are running a browser and maybe Office, so it's more than fast enough. Is it the lightest? Nope, but we have x86 tablets down to 1.2kg and that's light enough.
There have been ARM Windows devices since before 2010 (Surface RT for example) and they've never taken off because the software isn't there. Apple can make it work because it has a captive audience and can literally force them to switch, but the rest of the world has to be sold, not told to and so far, most people don't see the advantages of it.