https://gs.statcounter.com/os-market-share/desktop/north-america/#monthly-200901-202607
Cloudflare stats also seem to support peaks of 15% usage but around 9-10% on average. In the United States alone, the market share for Linux is nearly 12% now for the whole month and Cloudflare stats suggest peaks of up to 25% (!) Linux desktop usage on certain days and times.
The trendline suggests this is just the start. When will companies realize they cannot ignore Linux anymore?
Of course. No matter how good not-windows-operating-system is, only people interested, capable and willing to make the switch will migrate on their own. Others will wait until it becomes unbearable to stay or for someone to do it for them (pre-installs when a new computer is bought)