/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 796 0 79 0 2 12 0 0 20 0 22 0 1256 1058791424 1221 18446744073709551615 94881325220048 94881326542832 140735257802688 0 0 0 0 4096 83008 0 0 0 17 0 0 0 0 0 0 94881326584216 94881326586928 94882142068736 140735257805455 140735257805674 140735257805674 140735257808868 0