/proc/2/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 2752 0 79 0 207 310 0 0 20 0 7 0 2984 1056886784 1438 18446744073709551615 94306535391440 94306536714224 140720489950304 0 0 0 0 4096 83008 0 0 0 17 0 0 0 1 0 0 94306536755608 94306536758320 94306785214464 140720489951926 140720489952145 140720489952145 140720489955300 0