Saving multi-stop routes in Apple Maps for future use
Not a question, but a solution:
In Apple Maps, once you've planned your stops and the routes you'll take between them, go to the Step by Step directions and scroll all the way to the bottom. You'll find a Share button down there. Clicking this generates a URL that can be copied/saved/shared. For example, you can share it to Notes and give the note a name for the itinerary. Later, when you're ready to travel, open that note and click on the URL. Apple Maps will launch and the stops and routes that you previously established will load in.