In my experience Google maps is ok although not brilliant. It more or less knows where my house is but the location isn’t really right, but it gets you close enough. Google maps often locates businesses in weird places where they obviously aren’t, and quite often it’ll put every business on the street into a single building, which admittedly would be very convenient, but not really accurate to reality.
If you want accuracy you have to go with OSM which practically maps the location of every pebble.