I can confirm this, I have planned and ridden several itineraries created in BRP Go, they are all there, accessing the map and tapping the icon on the top left (like the picture above). Also from there you can rename, delete, duplicate, or share any previously created itinerary. There's an interesting feature from which you can share the itinerary to a group... Groups are created on the entry screen under social.
But I've seen no possibility to create shaping points, only via points... This means while navigating you get the info for the next via point.
So let's say an itinerary that includes only 3 points: start, middle via point, end... As soon as you start navigating it displays the time and distance to the middle via point. Only after getting there, it will display the distance and ETA to the end... With a middle shaping point instead of a via point I would have the ETA and distance to the end... So to create shaping points, there’s really no other way than creating via points, in order to force the itinerary to pass through them - which isn’t exactly the purpose of a via point, since it’s meant to mark a stop or a waypoint in the route.
But I can honestly see a lot of potential in this application. I know that the ability to map other friends’ Spyders on the map is planned, so you can locate friends and organize group rides. I believe that for this, the GPS module is required - which, as far as I know, was introduced starting in 2025. I sincerely hope that BRP’s engineers invest in this solution (the hardware seems more than capable), since, unfortunately and sadly, I doubt that Android Auto will ever be supported.