I have to agree. Most of this can already be done by something like JellyFin. But once you start branching into understanding podcast, emulators, comicbooks, & personal photos, you're no longer talking about a single app.

If your goal is organization, there are plenty of other tool specific to the individual purposes. If your goal is consumption kodi can server as a launcher to other applications. Adding the functionality is techincally possible but would require addons.