The marker functions that don't have info window customizations have a contentDescription parameter. However, the functions that allow for customizing the info window don't surface this.

https://github.com/googlemaps/android-maps-compose/blob/820adfe02fc7dafcfed935c8f8347f72446906cb/maps-compose/src/main/java/com/google/maps/android/compose/Marker.kt#L394C12-L394C28