Watching from the sidelines (not a Microsoft user), I've completely lost track. Between this, the Azure 365 cloud whatever stuff, I have no idea what many of the products even exactly are any more.
Series is a real weird word to use there. But it also doesn't help that the versions are extra complicated because with "PC-like compatibility" in everything after the Xbox One playing just about the entire same library you need a bit of a matrix to figure out which is best for you if you don't care about the "latest and greatest".
Weirdly it only has 8GB of internal storage...
Compare that to Playstation: 1, 2, 3, 4, 5.
Which I could add is "the only AI approved for use by IT" because they hate us.
It's the same at our place. It's basically the lowest effort way as we already have data agreements with Microsoft 365 it eliminates a lot of the paperwork. And they do promise that they won't train on data even in the free (well, included with basic M365) version for corporate users. A lot of others don't unless you pay.
It's too bad because it seems to be the worst AI around. Even compared to ChatGPT itself which uses the same model as copilot in MS Office. I don't really understand why there's such a difference. If you do pay the $30 it's a bit better especially the researcher.