It's not just that Microsoft keeps lowering the bar, although they do. Linux desktops have also improved A LOT, especially in the last 10 years.
We're at the point where UI-wise they run laps around Windows, and often even MacOS. They're intuitive, simple, and powerful.
The problem is that they're not windows. People know how to use Windows, including how to work around the layers of jank. When you remove the layers of jank, expectations get broken and users get confused.