[derefr]

AFIAK those pictures-of-menus don't come from the restaurant owner, but from the people dining there. I believe they're partly scraped from restaurant review sites like Zomato (where the pictures-of-menus are interspersed with pictures-of-the-food-itself) and partly the result of Google doing Google Lens things to your Google Photos to figure out that you took photos while inside a restaurant, and then asking you if it can use them.