It looks as though the feature will work as an extension to the row of tiles at the bottom of the current Xbox dashboard.

Microsoft is testing a new cross-device play history feature that will display recently played games on all Xbox devices ...

But deleting your Google Play history isn’t what we’d call simple if you’ve never done it before. And if you don’t know where to look, you could easily get lost in the depths of the ...

At this time I can't find a way to delete the same download history located on the Google Play Store site, but the deletion does sync from your device to the site.