/proc/self/root/proc/thread-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 /.
21 (libuv-worker) S 1 1 1 0 -1 4194624 7 0 0 0 0 1 0 0 20 0 11 0 498 1704189952 22778 18446744073709551615 7589888 50333345 140735295174928 0 0 0 0 16781312 17922 1 0 0 -1 0 0 0 0 0 0 109655528 109844416 1138216960 140735295178472 140735295178681 140735295178681 140735295180775 0