amok: At the last count, there is 120M active acounts on Steam. The latest hardware survey has Linux at 1.76%. This means about 2.1M Linux users.
timppu: I wonder how Steam counts those who may have taken that survey both from Windows and Linux, like me? Am I moved from a Windows user to Linux user and vice versa, or counted to both figures?
I would expect that quite many Linux PC gamers also use Windows, as gaming is still sometimes more straightforward there. If it wasn't for games, I'd probably be exclusively on Linux.
I assume it would depend on the OS you were using at the time you got asked to take the survey. If you are on your windows set-up, you get counted as a windows user in that survey. If you are on your Linux set-up you will be counted as a Linux user in that other survey.
The survey is anonymous, they do not keep your personal information, so they do not know you counted as a windows user in in survey, and as a Linux user in another.
the same apply when / if a user changes main OS if they only use one, for example moving from WIndows 8 to 10, or moving permanatly from Windows to Linux.
amok: it is also a numbers game. gOg would have 12M active users, take 1.76% from that leaving 210K Linux users.
SemilunarLiri: We know there are
at least 35,000 Linux users on GOG just because that many users have voted for the GOG Galaxy wish. [...]
not to be too nitpicky, but this is not necessarily true. there is no requirement for people to be Linux users to click that wish button. A person may be a windows user, but think it is reasonable to allow Linux users to have a galaxy version as well, or they may be Windows users but thinking they may switch OS sometime in the future, or for many other reasons. It is not a metric I would use for anything.