Linux, as an OS, is much more feature rich. What it lacks is applications. There are many applications out there that are only available for Windows or OSX and there is no Linux app to do the same thing (or the Linux app is very far behind in quality). The inverse (a Linux only app) is rarely true, except for applications that are niche or heavily rely on an OS feature that does not have a close equivalent on Windows.

Plus, just about every piece of (consumer) hardware that can be connected to a computer has a Windows driver.