Kinda yes, kinda no.

They don’t manually update that. They pull from the US Geological Survey Geographic Names Information System (USGS GNIS). That system got updated with the executive order.

The kinda yes is that they’re not legally obligated to use that data, like federal agencies are. They just use it for consistency for all users within the US, and for the fact that it’s freely available and the most detailed data for the entire US. The could have manually kept it the Gulf of Mexico, but they have a pretty consistent record of following whatever the federal government of a location does. At least Apple does, idk about Google as much though I imagine they’d do the same.