It was a bit of a shitstorm even in the English world. Plex definitely could’ve written the requirements more clearly.
I’m glad a full open-source stack works for you; I wish I could. There’s a few of my Plex users who just couldn’t make the jump to something like Jellyfin (and I’m unwilling to be their tech support), and honestly for me PlexAmp is so good as to make the problems of Plex overall be worth it.
Take care, friend.