I wonder if it has anything to do with the Getty Images complaint to the European Commission:
Google has made it more difficult for people to save pictures from its image search product, as part of a “peace deal” with photo library Getty Images.
In 2017, Getty Images complained to the European Commission, accusing Google of anti-competitive practices.
Google said it had removed some features from image search, including the “view image” button.
Getty Images said it was a “significant milestone” but critics said the move was “a step backwards”.
It also removed the “search by image” button, which was an easy way of finding larger copies of photographs.
Maybe they took additional steps in Europe.