Full-service restaurants that want weeknight covers, fast casual and pizzerias that live on pickup and delivery, cafes and bakeries chasing the morning search, bars with events and tap lists, caterers and food trucks whose customers search days ahead.
If you run several locations, each one gets its own Business Profile work and its own location page, so they don't compete with each other. The restaurant marketing agency page explains how search fits next to social, email and the apps, and the restaurant advertising page compares paid options with SEO honestly.