c5_convertible
Microsoft solitaire collection for Windows 10 is free, so I'm not sure what you mean?
It was an illustration of what they are going to try to do across the board in the upcoming years. They are going to pull away pieces that have been considered part of the OS "package" and monetize them separately.
Freecell is a small example. Yes, you can play the basic game for free but you do have to register a store account, which means you do have to give Microsoft your credit card, and you will be subject to lots of nags trying to get you to "upgrade" to group orgy solitaire mode for a monthly subscription. This is all peculiar, because I always thought "solitaire" meant "alone". I don't have a store account and plan to resist that as long as I can.
Microsoft can do what they want, but I think their claim of "Yes, it's really free -- why does everybody doubt us?" is blatant false advertising.