/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 4744 0 79 0 951 1090 0 0 20 0 7 0 3866 1058934784 1590 18446744073709551615 94010683052240 94010684375024 140727331150976 0 0 0 0 4096 83008 0 0 0 17 1 0 0 0 0 0 94010684416408 94010684419120 94011489374208 140727331156584 140727331156803 140727331156803 140727331160036 0