GNU/Linux at ~4.75% (Won't Be Long Before Exceeding 5%)
THE general trend has been up for while, one might speculate that "Recall" and other junk being timely accelerators in a migration away from Windows.
Steam usage for July shows GNU/Linux at just above 2% (same as June, new numbers just came out), but those are people who embrace DRM and typically use computers for play, not work (or more play than work).
Below is what statCounter shows at the moment. This is a new record. █