2) You can download .tar.gz and compile yourself all you want on Gentoo -- Portage just won't upgrade for you later.
3) Gentoo's philosophy is "Do whatever you want." You can compile KDE with all the bells and whistles, or you can stick with fvwm.
© 2017, O’Reilly Media, Inc.
All trademarks and registered trademarks appearing on oreilly.com are the property of their respective owners.