Steam Linux Usage Put At 0.6% For September, Contrary To Other Inflated Numbers
Valve's updated Steam numbers for September 2017 put Linux at a 0.6% marketshare, or a 0.03% lower compared to the month prior. Windows picked up most of that with macOS also dropping.
Meanwhile the Netmarketshare data showed Linux almost doubling over the past month, but likely due to some flaw in the system or reporting discrepancy with Android/Chrome-OS. In fact, since the earlier drama today, has already been revised lower to 4.83%. Though that number is still likely artificially higher due to Chrome & co.
Valve's latest Linux gaming numbers can be found here.