This kind of already exists. Microsoft 365 is basically office 365 with an included Windows license (and a few other perks) . I don't know if they're pushing it in the consumer space, but they seem to be trying to get businesses to switch.
It's only a matter of time before that becomes normal, I'm so excited for the days when computers come with a trial of ms365 and force you to pay after it expires. Or better yet, buy "extended coverage" to get double the time for triple the price!