/proc/thread-self/root/proc/2/root/proc/2/task/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 3174 0 79 0 2295 2252 0 0 20 0 10 0 3183 1054568448 1570 18446744073709551615 94769443922128 94769445244912 140729086551376 0 0 0 0 4096 83008 1 0 0 17 0 0 0 0 0 0 94769445286296 94769445289008 94769475010560 140729086554716 140729086554935 140729086554935 140729086558180 0