Xbox One, Series S/X (optimisation) and PC are now listed on the TSW2 product page. If we look at TSW2020, it has two product pages on the Microsoft Store - one for Xbox and one for Windows. Those are separate games with their own cloud saves and achievements. TSW2 is one product for Xbox and PC as long as you are using the Microsoft Store ecosystem. It does also say support for Xbox achievements and cloud saves (not sure if synced between PC and Xbox). Other thing is if you bought the game/add-ons in TSW2020 for Windows 10 it is not yet known if you get preserved collection versions. Edit: I don't think you get add-ons on Windows 10. It's not giving me the option to send to PC, only Xbox.