Unable to answer "What’s the surface here?" – Foot Path – way/409875874 via StreetComplete 58.0:

This is an access point onto the track, unpaved (grass/gravel) except for rubber matting around the rails. There doesn't seem to be any access to a path on the other side, where there is a fence. This is not the path slightly further north (visible in the second photo), which is mapped correctly

Attached photo(s):
https://westnordost.de/p/237702.jpg
https://westnordost.de/p/237703.jpg

Foldable bollards here

via StreetComplete 60.3

Attached photo(s):
https://streetcomplete.app/p/279355.jpg

Starbucks has closed down.

Subway has closed down.

is there a footpath here? It looks like there is one from here northeast to Silvester Close and northwest towards Norn Hill

There is footpath access from Heather Lane to the Canal Towpath just before Slade's Bride.

Unable to answer "What kind of building is this?" for way/919839682 via StreetComplete 54.0:

Two separate buildings

This turning currently shows that both lanes of Beggarwood Lane must turn left onto Winchester Road. The left lane is left turn only, the right lane is right turn only. This has been fixed before but got reverted for some reason.