Nothing? Google’s done nothing? Despite knowing this change was coming for months, Google hasn’t created a Google Maps app to make up for Google being dropped out of the native Maps application in iOS in the same way it made a YouTube app to cover being dropped from the native Video application?
Time to parse what “haven’t done anything” may mean.
In contrast to the dismal assessments of Apple Maps that you’ve been reading, I actually don’t believe when it comes to local search that Apple is quite as far behind as people imagine.