The only feature that keeps me using Kodi is the ability to open a movie or show, click on subtitles and there and then be able to download the use a subtitle from a provider like opensubtitles, I find the automatic download feature in Plesk doesn’t quite work, also sometimes the names re not quite right, it won’t find it … etc
If this is possible in Plex I don’t see it, if it’s not, this would be a major feature for those of us who use subtitles allot