It sounds like you know everything about the internet and people's preferences, why ask?

Where do you think Google and co. source that data from? Having an actual, searchable, up to date menu is, just for a11y and accuracy far more valuable than someone’s poorly lit, low res upload of an photo taken from the menu circa 2019, just to name one advantage. Have found data from restaurants without their own webpages on Maps utterly inaccurate, even suggesting some that have been shut down for months to where there is clear value. Then there is restaurants closing for holidays, illness, etc. and the ability to make reservations without calling. Whether these need their own over an Astro template is another topic, but having a webpage at all is incredibly valuable.