After experiencing great help on this forum, I am posting something here again. Thanks for the great support!
I had my Versys 650 (2016) serviced by the an authorised dealer in January. Everything was good, only oil and oilfilter needed replacement. Then, a few weeks back I went there again because my gas cap had oxidation inside and thus my gastank was underpressured compared to the normal pressure outside, thus a vacuum existed.
They made remarks about my chain, that it was worn out, if it had ever been replaced (currently 33.000 KMs, 20.5K miles), and that a chain usually lasts 10-15K Kilometers.
I am not entirely sure if it has ever been replaced, but I know for sure that it hasn't been replaced since the big first service around 24.000 kilometers.
They pointed specifically to chainlinks that got stuck in a certain position, and are not entirely free to move around. See pictures.
Would you guys please have a look and let me know if you think this chain should be replaced?