We have started rolling out a change which will affect the default poster artwork we use for movie titles across our entire service, including the “Plex Movie” agent used for personal media inside Plex Media Server. We’ve selected a new primary metadata source for images which should improve the quality of the posters we use, especially for lesser known titles in our metadata catalog. This new source will also make it easier for us to manage our metadata database moving forward. Not every item...
They sorta did, just in a different thread. https://forums.plex.tv/t/new-artwork-provider/867786/6
It’s Gracenote.