How they get information about places like restaurants, shops etc?

I thought they relied on open street map

Mapy.cz relies on open street map, but it has advantage that you can add reviews and photos to places.

I think its the best replacement right now, but it needs more community

Hmm, unfortunately >99% people dont care… In Poland everything relies on us infrastructure. Government buys services from M$ or Google, when we have own european companies or it could invest in own infrastructure