I was in Japan in Spring, I didn't notice any AI-generated ads/menus (not implying you're lying, just curious if it's become a trend since then, or if it's a particular area).

But I recall this simple looking promotion: https://imgur.com/a/fbM8Akb . The photo looks professionally done, and not AI. Then again, maybe they googled for "cheesecake photo".

I just image searched for "cheesecake", I didn't find this photo in the results, but there are a few results where I now have to wonder "Is that AI?"