I don’t keep embedded metadata but occasionally I miss a season of something here and there. I keep this enabled on Plex because I can use the search bar to find what shows I might have missed. Windows does not have a good way to search for this. (that I know of)
You can bulk edit the metadata field in windows.
Select multiple files at once. If all your movies are in individual folders use the search bar and type in .mp4, then select all of them, then properties.
Plex dance or rescan and refresh metadata for that library and you should be good.
I know what he’s talking about the changes you just typed changing or reverting before you can save it though. I had that issue using Plex web with a Chrome browser but haven’t noticed it using the Plex for Windows app. I noticed this mostly if I copy and pasted something into the edit field that ended with a period. If you didn’t back space and retype the period it would change everything you typed. Obviously that was more prevalent in the “Summary” field but the title had a similar problem which I never quite figured out
Can’t help you with that part, but if you disable the ability for Plex to pick that metadata up or you remove it, most things “if named correctly” i.e. Belfast (2021) [1080p WEBRip x264-RARBG].mp4 should match properly and you won’t have to edit anything avoiding this whole annoyance.
