Plex playlist is a nice idea but I would say needs some work. I’m not sure how it works completely, but I assume its by Database ID, not not really to the item itself as in movie title. I use playlist for movies that have several series, like James Bond. That way when someone would like to binge or watch things in order they don’t have to remember where they were, and what is next. The problem is, if any movie that is added to a custom play list (not playlist created by genre, etc…), and said movie gets replaced by another version, that movie is no longer tied to the playlist. This makes it very hard to maintain custom playlist, and since most of us have everything setup in automation. Movies can be replaces without knowing.
If anyone has any insight on maybe a different way of making custom play list that will remain while items are updated, please let me know…