I work in emergency services and have been with multiple agencies that utilize OSM due to its increased accuracy and often more up to date data.
In some of our software, it’s even one of the base map options and many of us prefer it (both standard OSM layer and the humanitarian layer).


Up here in Canada, most of our dispatch services use google maps within the primary system as the base map layer with an option to launch our system on the software’s own cartography as backup but those maps are fairly out of date for the most part.
Beyond that, we have a provincially run platform that is actually even more up to date than Google Maps (and includes way more info, one good example is it gives us every single transformer and power pole across the province). That software gives us numerous base layer options, including Google Maps, satellite, and OpenStreenMaps. Most operators prefer the OSM base layer but having the option to switch rapidly to compare which is more detailed in a given area is so valuable.