Test
Tap once. Apple Maps should open.
Use Safari with the extension turned on and All Websites set to Allow. Opening this page is only the first step.
Test a place link
Tap the button below. Safari to Maps should open Apple Park in Apple Maps without first taking you to Google Maps.
Test a route link
Use the route test after the place test succeeds.
If Google Maps opens
Return to Safari to Maps, open Safari extension settings, and confirm that Safari to Maps is on and All Websites is set to Allow. Then return to this page and try again.