Unable to answer "Which direction leads upwards here?" – Ruelle Saint-Martin (Steps) – way/28510535 via StreetComplete 61.3:

There are no steps on this segment, it's a normal, narrow (~1.5m wide) street.

Unable to answer "What’s the height of the curbs at this crossing?" – Marked Crossing – node/303404329 via StreetComplete 62.0:

No crossing there, the actual crossing is a few meters Eastward (already mapped)

Unable to answer "How many car lanes does this road have?" – Boulevard Dubouchage (Residential Road) – way/797535877 via StreetComplete 62.0:

The actual lanes are somewhat different from the map: a one-street from the North, which turns either left or right immediately, without having to cross the subdivision of the Dubouchage Blvd that goes into the tunnel.

Attached photo(s):
https://streetcomplete.app/p/317662.jpg

In context of overlay "Places" – Pharmacie l'APOTHEQK du Square Goiran (Pharmacy Counter) – node/5076307662 via StreetComplete 61.3:

Can be removed (duplicated with the one nearby)

Unable to answer "What’s the height of the curbs at this crossing?" – Marked Crossing – node/7501702316 via StreetComplete 61.3:

No crossing there

Unable to answer "Do these steps have a ramp? What kind?" – Steps – way/243900473 via StreetComplete 61.3:

Wrongly tagged as stairs: it's similar to every other pathway of the garden, with a few steps at the very end (north west)

Unable to answer "What can be left here for recycling?" – Recycling Bin – node/7555028076 via StreetComplete 61.3:

No longer exists and the garden has been extended

Unable to answer "Are there traffic signals that show when to cross here?" – Crossing – node/3038010656 via StreetComplete 61.3:

Looks like the pedestrian pathway is duplicated. There's only one crossing, inland, and a bike path on the west.

There is also a new, north-south pedestrian crossing on the other side (Linking southwest to northwest corners) also with inland but no bike path.

Unable to answer "What are the pickup times of this collection box?" – La Poste [A4D7S2] (Mail Drop Box) – node/1600011823 via StreetComplete 61.3:

9am Monday-Friday
8am Saturday

There is now a new apartment building here + a small square north of it.

via StreetComplete 61.3