@Golom
I have the announcements of road signs turned off. I can't see anything related in route warnings.
I have already gone through all the menus myself, but probably not all things are accessible through the UI interface.
As I already have written the tunnels appear as a direction icon (not as a road sign), at the top left of the screen, so it's obvious that the app deals with them as a point where directions should be announced to the driver.

As for the likes, I don't use the like button because it seems useless in my opinion. All this thing with virtual likes is of 0 importance for me and as I don't care to receive any likes I also don't pay attention to press the button for others...