@Martin-Wilcke, I understand that you don't want certain map-details public. But you can choose to cut off unnecessary parts instead of blurring them
I never recognized this automatic switch of navigation mode...
To be honest: me neither
But it seems very handy. If you disable "routes as tracks", HERE routes wile be navigated like always, and OSM/TT routes will automatically be navigated as tracks, which is the clever choice for those.