> For my use case my interpretation is that would mean extra work for potentially lower quality, and unlikely any value add given that nothing annoys me about current Plex.
Here's a positive example from my experience from switching to plex to jellyfin. When I drop files into my movie/tv folder jellyfin automatically syncs the files whereas in plex I always had to go to the page and click a menu icon and then click sync folder. Maybe there's a way to do it in plex that I don't know about but jellyfin did it by default.
I also find the web version of the media player better on jellyfin. I hated the google auth login to plex, and so far jellyfin feels lighter weight.
Like you, I don't need advanced sharing options and or anything beyond a private website that I can play my movies/tv shows so plex always felt overkill.