Just because they stopped selling it doesn't mean it's free. The only legal way to aquire MacOS is to buy an Apple product, or somehow get an upgrade from one of those old paid versions (which since this happens through the App Store now, you still need an Apple product).
Windows is also not free even though you can download the iso. There's license terms
The last version of MacOS I used was $130 https://en.wikipedia.org/wiki/Mac_OS_X_Tiger
Just because they stopped selling it doesn't mean it's free. The only legal way to aquire MacOS is to buy an Apple product, or somehow get an upgrade from one of those old paid versions (which since this happens through the App Store now, you still need an Apple product).
Windows is also not free even though you can download the iso. There's license terms
Gonna die on this hill huh?
Sure, and if you got modern hardware with Windows 7 on it in 2009 then you had up-to-date free Windows since 16 years.