The geofield directions module is a drop in module that provides a field formatter for end user display (not administrative pages). This module works with geofields to allow the user to display customizable text (Example: Get Directions), that will link users off to a google maps page with a single point dropped on it so that directions can be gathered. The only map provider it works with right now is Google Maps.
This was module was built and tested on Drupal 9.1.3.