I have a node sending GPS position through TTN, and I’d like to display that position on a map, Google Maps or similar. I’m sure someone has done this before and have a suggestion for me
Check the myDevices integration, allows for very fast prototyping including maps if your data format matches the requirements.
IoT platform like Thingsboard (Open Source) includes this type of widget.
Have a look here: https://thingsboard.io/docs/user-guide/ui/widget-library/