Hello Buraddo,
I extended this residential highway because I did not see any physical barrier preventing this connection in aerial imagery nor in 2022 Mapillary (https://www.mapillary.com/app/?lat=45.797244199998&lng=21.242724899998&z=17.17696947638558&pKey=5054572701299193&focus=photo). A bollard is not present in the resources I have available to me but since you have knowledge that says otherwise, I’m happy to defer to your edits.
I hope you have a wonderful day!