There are hundreds of FREE Linux distros that have the traditional desktop. Most Linux distros include FREE Open Office too. You can try Linux by booting from a Live DVD without changing anything on your hard drive. Install if you like, or reboot back to your old OS if you don't. You have a CHOICE!
By the way, while you're looking for the Windows 8 Start button, try to find the Control Panel too. Heh heh heh.
A version of Linux, namely Android, already dominates the mobile market, and continues to increase its dominance, while Microsoft and its PCs gets kicked to the curb. It's only a matter of time until that or another version of Linux moves upmarket to pick up what remains of the PC market.