1. Privacy: mac/windows requires an online user account sign-in and have built-in telemetry that can't be disabled. 1984 is your reality on these OSs, particula

1. Privacy: mac/windows requires an online user account sign-in and have built-in telemetry that can't be disabled. 1984 is your reality on these OSs, particularly a problem outside of the free world. 2. Hardware lifespan: apple or microsoft get to decide when you buy a new computer instead of you and the community. Annoying, expensive, and not environmentally friendly. 3. Customizability and control: can't fix or improve the OS, and many powerful features just don't exist. 4. Open knowledge and human progress: by sharing knowledge and allowing others to contribute, we collectively advance. Proprietary operating systems discourage progress, and open source ones facilitate it. Nearly all of the great apps you know and love exist because of the culture of sharing. Even the proprietary OSs only exist because of open source OSs and libraries as the foundation and inspiration.