When you get the turn instruction to leave a highway it is a simple “keep right” (or “keep left” if left hand traffic). E.g. here.
From my point of view there is a fairly easy improvement possible (I hope I’m not too naive here):
If you get “keep right” via the key/tag “highway=motorway_junction” the instruction could be something like “take exit”. The tag “motorway_junction” is used 182.000 times pretty much all over the world. taginfo
If in combination with the keys “name” (66% of mortorway_junction) or “ref” (25% of mortorway_junction), they should be used in the instruction as well.
This would be a great improvement for the car/motorcycle instructions from my point of view!