No. NVidia is great! Linux has open source
Nouveau drivers for NVidia cards that work pretty well. They are not as good as nVIdia's drivers, which you will want to install at some point and they are very easy to install. I use nVidia myself and IMO, they provide the some of the best support for accelerated video in Linux.
All of the proprietary packages, like the nVidia drivers, are in the
RPMFusion repositories. Once you get Fedora installed, you can just add RPMFusion to your repository list and get all the proprietary and NON-GPL licensed packages you need from there.
When you install Fedora, you will only have access to Fedora repositories. Once you add the RPMFusion repos and Adobe(flash) repos, you will have access to pretty much every software package and application available for Linux, right at you finger tips.
![Pengy :pengy](./images/smilies/rk01_pinguino.gif)