How do I get started with download for PC?

Newbie boomer here. I just purchased AoE for PC. when i log into the MS store, it says I own it. but when I click
image the green button, it says “Install this content with the Xbox app”. do i need to buy that now?? I don’t have an XBOX.

Its a normal app, from MS
They just named it XBOX , but its for PC.

Thank you for the response, but how/where do i download it? when i click the green button i get this pop up

In the microsoft store, jsut search for the app name :smiley: