This may be unpopular, but after using Kodi and similar software for many years (and enjoying it!), I just gravitated back to the basics. Want to watch a movie? Navigate to it in my file manager and play it with VLC. Music? Just use Winamp 2 or Audacious. I realized I was messing with odd HDMI passthrough issues, database issues, audio sync, broken plugins, stressing about tagging, etc etc every movie night much more…
I have been doing this all the time with Kodi. Just disable media scanning and browse through. I'm sold on Kodi because for years it has been the only way to watch video on my Linux NUC without tearing, it digests every media I can throw at it, and it's overall just very easy to configure and use.