It's those things but more as questions than things they want to read. What people actually care about for a restaurant is:
"Can you tell me if the food is good?"
"Can you tell me are the staff great?"
"Can you tell me what does it cost?"
and "Can you tell me where it is?" to an extent, especially if it's not on a major route.
People want answers that they can trust for those things. They want a trusted source to tell them the answers.
You can't really get any of those things from a Google search or a website (ignoring reviews because they're gamed to hell now). The majority of a restaurant's customers come from word-of-mouth recommendations or reputation through curated services like critics and directories especially at the top end. A good website helps for people who are visiting the area, or for restaurants that are very new and whose owners don't have a great network (or who wrongly believe a website is key to getting business), but for most restaurants the only way to drive business is to build a loyal base of people who tell their friends and colleagues about it.
If a restaurant is going to have a website at all it should be a great one, because bad websites shouldn't be a thing, but a restaurant could happily run for decades with just an Instagram page these days and it'd make no difference to their success.
