/proc/self/root/proc/thread-self/root/proc/2
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 /.
2 (bootstrap) S 0 2 0 0 -1 4194560 3353 0 79 0 674 888 0 0 20 0 3 0 14344 1058492416 1524 18446744073709551615 94863720493264 94863721816048 140730673410128 0 0 0 0 4096 83008 0 0 0 17 0 0 0 0 0 0 94863721857432 94863721860144 94864084463616 140730673414799 140730673415018 140730673415018 140730673418212 0