/proc/self/root/proc/self/root/proc/thread-self/root/proc/self/task/21
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 /.
21 (libuv-worker) R 1 1 1 0 -1 4194624 176 0 0 0 0 3 0 0 20 0 11 0 770 1863290880 62307 18446744073709551615 7589888 50333345 140729415872496 0 0 0 0 16781312 17922 0 0 0 -1 0 0 0 0 0 0 109655528 109844416 805638144 140729415874280 140729415874489 140729415874489 140729415876583 0