Yes…if you buy and install FCP X, all the codecs are installed and available to other video apps. I have a MBP that I got just to install and learn FCP X, Avid, and Adobe Production Premium (for Premiere) and intentionally left off the legacy FCP suite. I wanted to keep my money making edit suite sperate, and intact, while working with new software / workflows.
Everything works great! And full access to all flavors of Prores. BTW…I think Prores will be around for quite some time as it has become a widely used codec due to it’s awesome quality and camera makers as well as software encoders are using it moe and more.
Tony Brittan