bxl-forever
Not found on Mapillary (Apr. 2020)
https://www.mapillary.com/app/?pKey=790016361704065

Found this on Jette municipality’s website: it only talks about the part north of the small roundabout (which can be seen on Mapillary), not about this one.
https://www.jette.irisnet.be/fr/a-votre-service/mobilite-et-espace-public/a-velo/rues-cyclables

I suspect the answer is probably no.