I have a Moto E4 running Android 7.1.1 and I want to change the name that appears above my work in the Google cards maps. It says Jennifer and that's my ex-girlfriend's name. I don't want it causing issues in my future relationships.
You can't change what's already there, only what appears from now on. If you want to get rid of everything in maps, go to Settings/Apps/Maps and clear cache and data. But if you want to save some locations, don't do that. (Or install MyDirections [it's old, hasn't been updated in a long time, doesn't read what it backs up sometimes - but it's handy], and put the ones you want in there [you have to be at the location when you add it in order for it to work - another thing that was "updated" to unusability].)