In Denmark you will find almost all restaurant and food places in Openstreetmap.
I have created tools that help to keep POI'd up-to-date by mapping to public health inspection reports.
https://github.com/elgaard/OpenStreetmapTools/tree/master/re...
https://digitalfrihed.dk/restaurants/all.html
We could use some kind of open reviews. That is more tricky, which is also why the commercial platforms are not that good.
Wikivoyage.org is great for tourist, but too limited for locals (you cannot have every single pizza and burger place in travel guide).
The Osmand app with Wikivoyage is a great example of what can be done with free software and data. It is all offline. You can search for restaurants near you without revealing you location to anyone. When you click on the the webpage of a restaurant, it opens in your browser without redirecting from Yelp or sending the URL to Tripadvisor. And when you click on the phone number for the restaurant, your phone just calls directly.