The current system seems to use machine learning to try and tell what the content of the image image is then just provide generic results for that term along with a similar color palette.
Used to be able to find a movie screenshot on Tumblr, image search it and the name of the movie would come up. These days it'll go recognize the image is a woman on a street using ML, then show you results for "Woman" or "street" in the color palette of the image and if you're lucky you'll get a link to Pintrest too which also doesn't contain the context and just pushes you into a Pintrest onboarding flow.
Feels like the Image Search team is more preoccupied with solving problems which are interesting to them with zero interest if the tool actually better or not for people who use it every day.