This doesn't work as well as it did on v.5.0! There were no earbuds around then, so it was only the analogue plug that was affected, meaning I still had full control over my Bt speaker volume.
This is no longer the case.
I am very grateful that Samsung saw fit to keep the analog headphone socket. However, anyone who uses it won't be using buds but now has to put up with the inconvenience of losing Bt speaker control and having an annoying dialog pop up every time you switch the speaker on.
I believe this could be easily improved by adding an option to apply the media volume limit to the headphone socket only.