Google Address Autocomplete allows customers to quickly fill in their address using Google Maps JavaScript API to intelligently find their address.
You can enable Google Address Autocomplete in WP Admin > CheckoutWC > Pages > Checkout.
Configuring Google API Keys can be a bit tedious, to help guide you in the process we have created a separate doc: How To Get and Configure Your Google API Key
Check the box for “Enable Google Address Autocomplete” and then head to WP Admin > CheckoutWC > Integrations and provide your API key:
Then click Save Changes.