Building constructed and in use :
https://www.mapillary.com/app/?pKey=387412514408626

+ Road finished too : https://www.mapillary.com/app/?pKey=1156254922110570

There is a building passage that connect : osm.org/way/98620990 to osm.org/node/10034500492

https://www.mapillary.com/app/?pKey=1359279438018393

There's probably a charging station for electric bikes somewhere here

https://www.merchtem.be/product/1045/oplaadpuntenlaadpalen-voor-elektrische-fietsen

missing social facility tag see :

https://www.ganspoel.be/

+ building geometry near here : https://www.mapillary.com/app/?pKey=2451563545017169

opening_hours for the park and the footway inside are not the same

+ small difference on the park from official data : https://etterbeek.brussels/fr/themes/environnement-et-urbanisme/espaces-verts/les-jardins-de-fontenay-sous-bois

Friday i added 3 POI on mobile with level -1 as indicated on this elevator i have taken : osm.org/node/11124711253/history

when checking now with Josm i see that the indoor footway i have take is indicated to be -2 in osm : osm.org/way/513669186/history (V4 seems more correct) idem for the escalator going to the metro. It's clearly indicated on the elevator that metro level is -2.

Maybe SNCB use another level tagging but in that case where is the reference ? I just taken this entrance and not checked another one.

Less problematic ; i have the impression that osm.org/way/1199403256/history is a little bit more to the north

Drève Maritime - Maritiemdreef : to survey this part should be now open to pedestrian and bicycle from 06AM to 07 PM.

From this gate : osm.org/node/7346314109 until here osm.org/node/4075074091

Some fences probably deplaced + gates added/removed/moved.