Backup playlists and relink manually not playble playlist items with new files (especially when they are the same actually)

Hello, there plex members!
I saw many features, that are being asked, but nobody bothered to ask for playlist backups. I want to have this feature, as I am adding and removing files, so the metadata would be updated after they are edited in mp3tag. And metadata is either not updated or I don’t see changes… Sometimes when old files are renamed into different names they are not relinked… the only way is to re-add them, but re-liking manually on user friendly environment would be a nice feature…

Why metadata is important?
I am updating metadata often so the files would be clean of trashy info. Also last.fm would properly record the metadata that plex is sending to that site. And also last.fm doesn’t have all the customized album database or even small band database at all, as they are getting all the info from users and in my case from my plex library… And some users there are quite toxic on some bands… I have to delete their edits and rewrite them properly sometimes so my library would not have toxic bad mouthing description - as I would be ashamed to show my library, to friends. Remember that some albums metadata are sent from last.fm back to plex library when trying to match music albums…

I lost many playlists because they are not backup-ed in the process of re-editing metadata, and re-creating playlists from scratch is tedious, if you have already a huge library…

Short version:
Basically I remove from plex folder a music file > than edit it in mp3tag > later send it back to plex folder > plex doesn’t recognize the edited file > re-adding them manually instead of relinking, also old not linked playlist items get’s error… or vanishes…

I saw also so a request to share playlists with other user, if they make it true, than backing playlists will become even more significant. But for me as a huge library of plex user it’s already necessary feature to backup and relink…

And finding playlist notepad file inside the plex server is not a feature of plex, it’s a feature of Operating System… It is strange that nobody yet requested this feature before as it looks like a very essential feature to have in first place…

2021 clean-up: duplicate