I think a route for a vehicle remains a route, regardless of the type of propulsion. Pseudo-predictions based on speed have, for me, only ever been guidelines/probability calculations.

Modern vehicles have long had on-board computers that calculate fuel consumption and range – for both solid fuel and electric cars.

Conclusion: I rely more on that than on some hypothetical values ​​from navigation software. Of course, I think AI will soon be indispensable in this area as well.