Not knowing how this works internally, I think "Program Files (ARM)" would be unnecessary - the native platform is ARM, so it gets "Program Files", x86 is emula

Not knowing how this works internally, I think "Program Files (ARM)" would be unnecessary - the native platform is ARM, so it gets "Program Files", x86 is emulated (how different is x86-on-ARM than x86-on-x64?), so it gets "Program Files (x86)".