/proc/self/root/proc/4/root/proc/4/task/4/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 5 1 1cpu 8 36 1cpuacct 8 36 1blkio 10 33 1memory 7 51 1devices 3 33 1freezer 6 4 1net_cls 4 1 1perf_event 11 1 1net_prio 4 1 1hugetlb 2 1 1pids 9 33 1