And, in addition, the way calculations and routes differ when map provider changes.
E.g., what is short route for Here could be easy for TT. Only an example, does not have to be exactly this instance.
Using hnr files slightly aligns the situation, but personally I prefer the routing without them. And somehow it's more "natural" with the TT publisher.
But that's just my subjective experience, in "my" part of the world.
It's hard for anyone to answer this question. Only those who created algorithms know it.
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