The sample they used is likely not representative of the whole fandom; they only interviewed 334 furries in the study, from a fandom made of millions of people. And the participants were all male, too.
...I can't be the only one who actually reads these things, right?
A vast majority of the people on Lemmy use Linux. Or, at least, the Linux users on here are the most vocal about their OS. Just type in "Linux" in the community search, and you'll find dozens and dozens of linux communities with thousands of subscribers, compared to a handful of Windows communities with only a few hundred subscribers.