Is there a feature for which I can search for releases by artwork? Similar to the Google Image Search… where I can enter a URL or upload an image to search for?
There isn’t currently, no, at least not publicly. I know we talked years ago with a guy from Deezer who said he was(/they were?) working on something like that using either Deezer’s data and/or CAA’s data. Not sure whether it ever materialised, if it was made public, or what the current status is.