/proc/thread-self/root/proc/2/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 1834 0 79 0 566 677 0 0 20 0 7 0 5136 1054748672 1426 18446744073709551615 94747185455312 94747186778096 140729750481248 0 0 0 0 4096 83008 0 0 0 17 1 0 0 0 0 0 94747186819480 94747186822192 94747399680000 140729750483548 140729750483767 140729750483767 140729750487012 0