/proc/self/task/12/root/proc/thread-self/root/proc
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 /.
#subsys_name hierarchy num_cgroups enabledcpuset 4 1 1cpu 5 52 1cpuacct 5 52 1blkio 8 49 1memory 10 68 1devices 11 49 1freezer 7 4 1net_cls 2 1 1perf_event 3 1 1net_prio 2 1 1hugetlb 6 1 1pids 9 49 1