Linux is a more complicated and more powerful (at least more obviously powerful) tool than windows or macOS. Daily Linux use isn’t for everyone. It can be a hobby in and of itself.

The knowledge floor for productivity is much higher because most Linux projects aren’t concerned with mass appeal or ease of use (whether or not they should be is another discussion)

Debian, for example, is all about extreme stability. They tend to rely on older packages that they know are very very stable, but which may not contain newer features or hardware support.

The strength is extreme customization and control. Something that’s harder to get with windows and even harder to get with macOS.