Not that I've noticed, but then I don't look all the time. Next time I go out any distance I'll check.
As I've posted against another thread this seems to be an issue with the latest sat nav data settings. Re-installing the data I originally had in my 2017 Arteon has set dual carriageways back to 70Yes this annoying, dual carriage ways it thinks should be 60 and not 70, sudden speed drops because it thinks there is a roundabout when there isn't or a different speed to what the road actually is. I find it is managable by being ready to manually override the speed to the actual speed, but it is frustraiting. I keep meaning to look to see if you can adjust the settings to make it less sensitive to speed changes or something.