As of February 21st, 2024 (v3.56), google.maps.Marker is deprecated. We encourage you to transition to the new google.maps.marker.AdvancedMarkerElement class. Advanced markers provide substantial improvements over the legacy google.maps.Marker class.
https://developers.google.com/maps/documentation/javascript/advanced-markers/migration
https://mapsplatform.google.com/resources/blog/advanced-markers-now-available-for-ios-and-android-easily-customize-your-markers-across-platforms/