The website is not the product, but it does suggest something about the way your restaurant operates and how it is trying to present itself. You don't know the quality of the food before you go.

This summer I've noticed a lot of menus with AI generated images of food and I have not trusted a single one of them. If you are gonna pitch me with this thing that blatantly is not even tangentially related to your actual product, that does not give me a lot of confidence in your business. If they'd used a stock image of a carbonara I would be none the wiser, but the entirely fake stuff is a massive turnoff.

Some of the best restaurants I know have old timey bare bones websites because they've been around for decades, and it's an oddly good predictor of a place that has a lot of loyal customers.

If I saw a website that looked like the ones above, I would be immediately skeptical. Handmade but rudimentary says down-to-business no nonsense, shiny and nicely made by a pro says high effort. This stuff? It says slop shop.