I'd be more surprised if this was the first time Microsoft did this.
I checked the download page[0] and next to the download button they say they will do this
>You will also receive in-app notifications with promotional offers from Microsoft
I checked the download page[0] and next to the download button they say they will do this
>You will also receive in-app notifications with promotional offers from Microsoft
I would not describe a full-screen wallpaper, that is, the entire functionality of the software, to be a "notification".