one question

[MulleDK19]

You can but keep in mind if you are nabbing it directly from FG rather than steam;
"But please, as bandwidth cost and is limited, only download the game for the platform you intend to play it on. You can always get all the versions later, there is no download limit or time limit." which implies a lot of us downloading it on multiple systems in a short time span wouldn't be very FG friendly.

Unless you need to Linux version, you could get the Steam version.