According to Statcounter, Windows 11 held a 55.18% market share in October 2025. That share dropped to 53.7% in November and dropped again in December. Now, Windows 11 holds a 50.73% market share.
https://gs.statcounter.com/os-version-market-share/windows/desktop/worldwide
Many are rollback to Windows 10, but Linux is increasing as well.
https://gs.statcounter.com/os-market-share/desktop/worldwide
This news from last week: https://www.techradar.com/computing/windows/we-need-to-improve-windows-in-ways-that-are-meaningful-for-people-microsoft-promises-to-fix-windows-11-this-year-and-its-about-time