Windows 8 is no longer supported.
You were supposed to upgrade to 8.1 got free.
At the Google link you were given is this (Android is used on Smartphones, not Windows):
Requires Android
5.0 and up
@@@@@@@@@@@@@@@@@@@@@@
Now if we look at the Microsoft Store it is only available for Xbox One.
Minimum
| Your device must meet all minimum requirements to open this product | OS | Xbox One |
|---|---|---|
| Architecture | x64 | |
| --- | --- |
Recommended
| Your device should meet these requirements for the best experience | OS | Xbox One |
|---|---|---|
| Architecture | x64 | |
| --- | --- |