I'm excited to share that I solved this issue today using the Live Tracker Rider App from Blupry. The integration process was smooth, and their support team was fantastic! They also offer various other widgets/tools for FF, so I highly recommend checking them out!
https://community.flutterflow.io/ask-the-community/post/delivery-map-google---custom-widget-gX0kvcAuNkxJULN