Idk, on Kodi I had to rename my files a certain way for them to be associated with metadata from IMDB & all, so I was used to having Filebot[1] doing the job for me. When I switched to Plex, I didn't even think about it, I kept renaming my files with Filebot. Also I prefer the light and clearer pattern that is resulting from Filebot instead of having weird filenames depending on the release.
[1] : https://www.filebot.net/
