/proc/thread-self/root/proc/self
This explorer reads the filesystem of the server it runs on, so /workspace/user isn't present here. Browsing and the terminal still work against this server's own disk from /.
4 (node) S 2 2 0 0 -1 4194560 7546 0 722 0 29 5 0 0 20 0 11 0 542 1572147200 19410 18446744073709551615 94303342952448 94303386863541 140722232587632 0 0 0 0 16781312 17922 0 0 0 17 0 0 0 3 0 0 94303442316992 94303443185776 94303487176704 140722232595853 140722232596091 140722232596091 140722232598501 0