I believe what they are saying (hoping for?) is that since there are many Windows compatible laptops with touchscreens (unlike macbooks), Android app experience on them might be better.
Microsoft had unified their software architecture across various form factors.
So xbox, (phones?), tablets, laptops, desktops, servers ran the same Windows essentially with different shells.
Windows also supports multiple hardware architectures - we just need the external ecosystem to thrive as well. We see it in graphics with nvidia and amd but compute/cpu progress limped through most of 2012-2018?.