Are all Apps available on WebOS Open Source Edition?

I have an old TV that doesn't have a usable Smart TV. At the moment I have an old PC hooked up to it with Kodi installed. I've visited the WebOS OSE website but I couldn't find out if I could install every WebOS Application that I can also get on my new LG TV and if I could(or at least get the imprtant ones like YouTube and PLEX) how would I be able to control the interface?